CHAPTER VI

THE ENTRY OF THE UNITED STATES; OUR NAVAL POLICY EXPLAINED

The entry of the United States of America into the war in April, 1917,

had an important although not an immediate effect upon our Naval policy.

That the effect was not immediate was due to the fact that the United

States Navy was at the time indifferently provided with the particular

classes of vessels which were so greatly needed for submarine warfare,

viz. destroyers and other small surface craft, submarines and light

cruisers; further, the United States mercantile fleet did not include

any considerable number of small craft which could be usefully employed

for patrol and escort duty. The armed forces of the United States of

America were also poorly equipped with aircraft, and had none available

for Naval work. According to our knowledge at the time the United States

Navy, in April, 1917, possessed twenty-three large and about twenty-four

small destroyers, some of which were unfit to cross the Atlantic; there

were about twelve submarines capable of working overseas, but not well

suited for anti-submarine work, and only three light cruisers of the

"Chester" class. On the other hand about seven armoured cruisers were

available in Atlantic waters for convoy duties, and the Navy included a

fine force of battleships, of which fourteen were in full commission in

April.

At first, therefore, it was clear that the assistance which could be

given to the Allied Navies would be but slight even if all available

destroyers were sent to European waters. This was, presumably, well

known to the members of the German Naval Staff, and possibly explains

their view that the entry of the United States of America would be of

little help to the Allied cause. The Germans did not, however, make

sufficient allowance for the productive power of the United States, and

perhaps also it was thought in Germany that public opinion in the United

States would not allow the Navy Department to send over to European

waters such destroyers and other vessels of value in anti-submarine

warfare as were available at once or would be available as time

progressed. The German Staff may have had in mind the situation during

the Spanish-American War when the fact of Admiral Cervera's weak and

inefficient squadron being at large was sufficient to affect adversely

the naval strategy of the United States to a considerable extent and to

paralyze the work of the United States Navy in an offensive direction.

Very fortunately for the Allied cause a most distinguished officer of

the United States Navy, Vice-Admiral W.S. Sims, came to this country to

report on the situation and to command such forces as were sent to

European waters. Admiral Sims, in his earlier career before reaching the

flag list, was a gunnery officer of the very first rank. He had

assimilated the ideas of Sir Percy Scott of our own Navy, who had

revolutionized British naval gunnery, and he had succeeded, in his

position as Inspector of Target Practice in the United States Navy, in

producing a very marked increase in gunnery efficiency. Later when in

command, first of a battleship, then of the destroyer flotillas, and

finally as head of the United States Naval War College, his close study

of naval strategy and tactics had peculiarly fitted him for the

important post for which he was selected, and he not only held the

soundest views on such subjects himself, but was able, by dint of the

tact and persuasive eloquence that had carried him successfully through

his gunnery difficulties, to impress his views on others.

Admiral Sims, from the first moment of his arrival in this country, was

in the closest touch with the Admiralty in general and with myself in

particular. His earliest question to me was as to the direction in which

the United States Navy could afford assistance to the Allied cause. My

reply was that the first essential was the dispatch to European waters

of every available destroyer, trawler, yacht, tug and other small craft

of sufficient speed to deal with submarines, other vessels of these

classes following as fast as they could be produced; further that

submarines and light cruisers would also be of great value as they

became available. Admiral Sims responded wholeheartedly to my requests.

He urged the Navy Department with all his force to send these vessels

and send them quickly. He frequently telegraphed to the United States

figures showing the tonnage of merchant ships being sunk week by week in

order to impress on the Navy Department and Government the great urgency

of the situation. I furnished him with figures which even we ourselves

were not publishing, as I felt that nothing but the knowledge given by

these figures could impress those who were removed by 3,000 miles of sea

from the scene of a Naval war unique in many of its features.

Meanwhile the British Naval Commander-in-Chief in North American waters,

Vice-Admiral Sir Montague Browning, had been directed to confer with the

United States Navy Department and to point out our immediate

requirements and explain the general situation.

On April 6 the United States declared war on Germany. On April 13 we

received information from Washington that the Navy Department was

arranging to co-operate with our forces for the protection of trade in

the West Atlantic should any enemy raiders escape from the North Sea,

that six United States destroyers would be sent to European waters in

the immediate future, and that the United States would undertake the

protection of trade on the west coast of Canada and North America as

well as in the Gulf of Mexico. It was further indicated that the number

of United States destroyers for European waters would be increased at an

early date. The vital importance of this latter step was being

constantly urged by Admiral Sims.

When Mr. Balfour's mission left for the United States in April,

Rear-Admiral Sir Dudley de Chair, the naval representative on the

mission, was requested to do all in his power to impress on the United

States Navy Department the very urgent necessity that existed for the

immediate provision of small craft for anti-submarine operations in

European waters and for the protection of trade.

He was informed that the position could not be considered satisfactory

until the number of trawlers and sloops available for patrol and escort

duty was greatly increased and that a total of at least _another hundred

destroyers was required_.

It was pointed out that difficulty might arise from the natural desire

of the United States Government to retain large numbers of small craft

for the protection of shipping in the vicinity of the United States

coast, but it was at the same time indicated that our experience showed

that the number of submarines that the Germans could maintain on the

western side of the Atlantic was very small, and that the real danger

therefore existed in European waters.

Admiral de Chair was asked amongst other matters to emphasize the

assistance which United States submarines could render on the eastern

side of the Atlantic, where they would be able to undertake

anti-submarine operations, and he was also directed to endeavour to

obtain assistance in the production of mines, and the provision of ships

for minelaying work. Great stress was, of course, laid upon the very

important question of a large output of merchant ships and the necessity

for repairing and putting into service the German merchant ships

interned in U.S. ports was urged; directions were also given to Admiral

de Chair to ascertain from Mr. Schwab, of the Bethlehem Steel Company,

and other firms, to what extent they could build for the British Navy

destroyers, sloops, trawlers and submarines, and the rapidity of such

production.

The need for sloops was so great that I sent a personal telegram to Mr.

Schwab, whose acquaintance I had made in October, 1914, on the occasion

of the loss of the _Audacious_, begging him to build at once a hundred

of these vessels to our order. I felt certain from the experience we had

gained of Mr. Schwab's wonderful energy and power, as illustrated by the

work accomplished by him in providing us in 1915 with ten submarines

built in the extraordinarily short period of five months, that he would

produce sloops at a very rapid rate and that there would be no delay in

starting if he undertook the work. The drawings had already been sent

over. However he was not able to undertake the work as the U.S.

Government decided that his yards would all be required for their own

work. This was unfortunate, as I had hoped that these vessels would have

been built in from four to six months, seeing that the drawings were

actually ready; they would have been invaluable in the latter part of

1917.

Whilst the mission was in the United States constant communications

passed on these subjects, the heavy losses taking place in merchant

ships were stated, and every effort was made to impress upon the Navy

Department the urgency of the situation.

The tenor of our communications will be gathered from these quotations

from a personal telegram sent by me to Admiral de Chair on April 26,

viz.:

"For Rear-Admiral de Chair from First Sea Lord.

"You must emphasize most strongly to the United States authorities the

very serious nature of the shipping position. We lost 55 British ships

last week approximately 180,000 tons and rate of loss is not

diminishing.

* * * * *

"Press most strongly that the number of destroyers sent to Ireland

should be increased to twenty-four at once if this number is available.

"Battleships are not required but concentration on the vital question of

defeat of submarine menace is essential.

"Urge on the authorities that everything should give way to the

submarine menace and that by far the most important place on which to

concentrate patrols is the S.W. of Ireland.

* * * * *

"You must keep constantly before the U.S. authorities the great gravity

of the situation and the need that exists for immediate action.

"Our new methods will not be effective until July and the critical

period is April to July."

It was very necessary to bring home to the United States Navy Department

the need for early action. Admiral Sims informed me--as soon as he

became aware of the heavy losses to merchant shipping that were taking

place--that neither he nor anyone else in the United States had realized

that the situation was so serious. This was, of course, largely due to

the necessity which we were under of not publishing facts which would

encourage the enemy or unduly depress our own people. Further, he

informed me that an idea was prevalent in the United States that the

_morale_ of the German submarine crews had been completely broken by

their losses in submarines. This impression was the successful result of

certain action on our part taken with intent to discourage the enemy.

Whatever may have been the case later in the year, we had, however, no

evidence in the spring of 1917 of deterioration of _morale_ amongst

German submarine crews, nor was there any reason for such a result. It

was therefore necessary to be quite frank with Admiral Sims; we knew

quite well that we could not expect new measures to be effective for

some few months, and we knew also that we could not afford a continuance

of the heavy rate of loss experienced in April, without a serious effect

being produced upon our war effort. We were certainly not in the state

of panic which has been ascribed to us in certain quarters, but we did

want those who were engaged in the war on the side of the Allies to

understand the situation in order that they might realize the value that

early naval assistance would bring to the Allied cause. There is no

doubt that great difficulty must be experienced by those far removed

from the theatre of war in understanding the conditions in the war zone.

This was exemplified at a time when we had organized the trade in

convoys and the system was showing itself effective in greatly reducing

losses from submarine attack. We were pressing the United States to

strengthen our escorting forces as far as possible in order to extend

the convoy system, when a telegram arrived from Washington to the effect

that it was considered that ships which were armed were safer when

sailing singly than when in convoy. It has also been stated that the

Admiralty held the view at this time that no solution of the problem

created by the enemy's submarine campaign was in sight. This is

incorrect. We had confidence in the measures--most of them dependent on

the manufacture of material--which were in course of preparation by the

time the United States entered the war, but our opinion was that there

was no _immediate_ solution beyond the provision of additional vessels

for the protection of shipping, and the reason for this view was that

time was required before other measures could be put into effective

operation; this is evident from the final paragraph of my telegram to

Admiral de Chair, dated April 26, which I have quoted.

The first division of six United States destroyers, under the command of

Lieut.-Commander T.K. Taussig, arrived in British waters on May 2, and

they were most welcome. It was interesting to me personally that

Lieut.-Commander Taussig should be in command, as he, when a

sub-lieutenant, had been wounded on the same day as myself during the

Boxer campaign in China, and we had been together for some time

subsequently.

At about this time our advice was sought by the United States Navy

Department as to the best type of anti-submarine craft for the United

States to build; on this subject a very short experience in the war

theatre caused Admiral Sims to hold precisely similar views to myself.

As a result of the advice tendered a great building programme of

destroyers, large submarine-hunting motor launches and other small craft

was embarked upon. Although the completion of these vessels was delayed

considerably beyond anticipated dates, they did, in 1918, exercise an

influence on the submarine war.

The Germans made one great mistake, for which we were thankful. As

already mentioned, it was anticipated that they would send submarines to

work off the United States coast immediately after the declaration of

war by that country. Indeed we were expecting to hear of the presence of

submarines in the West Atlantic throughout the whole of 1917. They did

not appear there until May, 1918. The moral effect of such action in

1917 would have been very great and might possibly have led to the

retention in the United States of some of the destroyers and other small

craft which were of such assistance in European waters in starting the

convoy system. Admiral Sims was himself, I think, anxious on this head.

When the Germans did move in this direction in 1918 it was too late; it

was by that time realized in the United States that the enemy could not

maintain submarines in sufficient numbers in their waters to exercise

any decisive effect, although the shipping losses might be considerable

for a time, and consequently no large change of policy was made.

As is well known, Admiral Sims, with the consent of the United States

Navy Department, placed all vessels which were dispatched to British

waters under the British flag officers in whose Command they were

working. This step, which at once produced unity of command, is typical

of the manner in which the two navies, under the guidance of their

senior officers, worked together throughout the war. The destroyers

operating from Queenstown came under Admiral Sir Lewis Bayly; Captain

Pringle, the senior United States officer on the spot, whose services

were ever of the utmost value, was appointed as Chief of the Staff to

Sir Lewis Bayly, whilst on the occasion of Sir Lewis Bayly, at my urgent

suggestion, consenting to take a few days' leave in the summer of 1917,

Admiral Sims, at our request, took his place at Queenstown, hoisting his

flag in command of the British and United States naval forces. The

relations between the officers and men of the two navies in this Command

were of the happiest possible nature, and form one of the pleasantest

episodes of the co-operation between the two nations. The United States

officers and men very quickly realized the strong personality of the

Commander-in-Chief at Queenstown, and became imbued with the same

feelings of great respect and admiration for him as were held by British

officers and men. Also he made the officers feel that Admiralty House,

Queenstown, was their home when in port, and saw that everything

possible was done for the comfort of the men. The very high standard of

duty set by Sir Lewis, and very fully sustained by him, was cheerfully

and willingly followed by the United States force, the personnel of

which earned his warmest admiration. I think it will be agreed in years

to come that the comradeship between the two navies, first initiated in

the Queenstown Command, went very far towards cementing the bonds of

union between the two great English-speaking nations.

This was the first step in co-operation. The next was taken when the

United States Navy Department, as the result of a request made by us to

Admiral Sims, sent to Gibraltar a detachment of three light cruisers and

a number of revenue cutters as patrol and escort vessels, placing the

whole force under the British senior naval officer at Gibraltar,

Rear-Admiral Heathcote Grant. Here again the relations between the two

navies were of the happiest nature. Finally, later in the year, I

discussed with Admiral Sims the desirability of a small force of United

States battleships being sent to reinforce the Grand Fleet.

When the project was first mentioned my object in asking for the ships

was that they might relieve some of our earlier "Dreadnoughts," which at

that time it was desired to use for another purpose. I discussed the

matter also with Admiral Mayo, the Commander-in-Chief of the United

States Atlantic Fleet, during his visit to this country in August, 1917,

and with Admiral Benson, the Chief of Operations in the United States

Navy Department, when he came over later in the year. Admiral Benson

gave directions that four coal-burning battleships should be sent over.

We were obliged to ask for coal-burning battleships instead of the more

modern vessels with oil-fired boilers owing to the great shortage of oil

fuel in this country and the danger of our reserves being still further

depleted. These vessels, under Rear-Admiral Hugh Rodman, arrived in

British waters early in December, 1917, and formed a division of the

Grand Fleet. The co-operation afloat was now complete, and all that was

needed was further co-operation between the British Admiralty and the

United States Navy Department.

This had already formed the subject of discussions, first between

Admiral Sims and myself, and later with Admirals Mayo and Benson.

During the summer of 1917 Admiral Sims had been invited to attend the

daily meetings of the naval members of the operations side of the Board,

an invitation which he accepted, and his co-operation was of great

value; but we both felt it desirable to go a step farther, and I had

suggested the extreme desirability of the United States Navy Department

sending officers of experience of different ranks to work in the

Admiralty, both on the operations and material side, officers upon whom

the Navy Department could rely to place before us the views of the

Department and to transmit their view of the situation as the result of

their work and experience at the Admiralty. We had pressed strongly for

the adoption of this course. Admiral Benson, after discussions, assented

to it, and the officers on the material side commenced work in the

Admiralty towards the end of 1917, whilst those on the operations side

joined the War Staff early in 1918.

It was felt that this course would complete the co-operation between the

navies of the two countries and, further, that the United States Navy

Department would be kept in the closest possible touch with the British

Admiralty in all respects.

It is particularly to be remembered that even before we had established

this close liaison the whole of the United States naval forces in

British waters had been placed under the command of British naval

officers. This step, so conducive to good results owing to the unity of

command which was thus obtained, won our highest admiration, showing as

it did a fine spirit of self-effacement on the part of the senior

American naval officers.

The visits of Admirals Mayo and Benson to this country were productive

of very good results. The exchange of information which took place was

most beneficial, as was the experience which the admirals gained of

modern naval warfare. Moreover, the utterly baseless suggestion which

had, unfortunately, found expression in some organs of the Press of the

United States that we were not giving the fullest information to the

Navy Department was completely disproved.

When Admiral Mayo arrived in England he informed me that the main

objects of his visit as Commander-in-Chief of the Atlantic Fleet were:

(1) To ascertain our present policy and plans.

(2) To inquire as to the changes, if any, that were contemplated in the

immediate or more distant future.

(3) To ascertain what further assistance it was desired that the United

States should provide from resources then available or likely to be soon

available, and the measures that the United States should take to

provide future forces and material.

Papers were prepared under my direction for Admiral Mayo giving full

information of our immediate needs, of past procedure and of future

plans. As to our needs, the main requests were:

(1) An increase in the number of destroyers, in order to enlarge the

convoy system and to provide better protection for each convoy. An

additional 55 destroyers were stated to be required for this service.

(2) An increase in the number of convoy cruisers for the same reason.

The total addition of cruisers or old battleships was given as 41.

(3) An increase in the number of patrol craft, tugs, etc., for

anti-submarine work.

(4) The rapid building of merchant ships.

(5) The supply of a large number of mines for the proposed barrage in

the North Sea, and assistance towards laying them by the provision of

United States minelaying vessels.

(6) Aircraft assistance in the shape of three large seaplane stations on

the coast of Ireland, with some 36 machines at each station.

(7) The provision of four coal-burning battleships of the "Dreadnought"

type to replace Grand Fleet "Dreadnought" battleships which it was

desired to use for other purposes.

Admiral Mayo was informed that some 100,000 mines would be required from

the Americans for forming and maintaining that portion of the North Sea

Barrage which it was suggested should be laid by them, in addition to

the large number that it was proposed that we ourselves should lay in

the barrage, and that as the barrage would need patrolling by a large

number of small craft, great help would be afforded if the United States

could provide some of these vessels. It was estimated at that time that

the barrage would absorb the services of some 250 small vessels in order

that a sufficient number might be kept constantly on patrol.

It may be of interest to give the history of the North Sea Barrage so

far as I can recollect it. Our views on such a scheme were sought by the

United States Navy Department in the spring of 1917. Owing to various

military circumstances, even at that time we had no prospect of

obtaining mines in adequate numbers for such work for at least nine to

twelve months, nor could we provide the necessary craft to patrol the

barrage. Our view was that such mines as became available during the

last months of 1917 would be more effective if laid nearer to the German

North Sea naval bases, and in the Straits of Dover, than at such a

distance from these bases as the suggestion involved. Apart from our

desire to stop the submarines near their bases, the pros and cons of the

scheme were as follows:

The advantages were:

(1) That, except for the difficulty of preventing the submarines from

using Norwegian territorial waters for egress, a North Sea Barrage would

be a menace to submarines using the Kattegat exit as well as those

coming from North Sea bases.

(2) That the enemy would be unable to sweep up the minefield, owing to

its distance (over 200 miles) from his bases.

The disadvantages were:

(1) The immense number of mines required--some 120,000, excluding

reserves--and the improbability of producing them in Great Britain.

(2) The great depth of water in which many of them were to be moored, a

depth in which no mines had ever been successfully laid before; time

would be required to devise arrangements that would enable the mines to

be laid at such depths.

(3) The very large number of patrol craft that would be needed to force

submarines to dive into that portion of the minefield which was safe for

surface vessels and the difficulty of maintaining them at sea in bad

North Sea weather.

(4) The difficulty of preventing egress by the submarines in Norwegian

territorial waters, in which, even if mines were laid, they would have

to be moored at such a depth as not to constitute a danger to vessels on

the surface.

Shortly after the subject was broached to us we learned that the United

States Navy had devised a mine that it was expected would be

satisfactory for the purpose of the barrage. An experienced mining

officer was at once sent over by us to inspect the mine and to give to

the United States officers such assistance as was possible due to his

great knowledge of mining under war conditions.

When he arrived in the United States the mine was still in the

experimental stage, but later he reported that it promised to be

successful, and in view of the great manufacturing resources in America,

it appeared that a considerable proportion of the mines for the barrage

could be provided by the United States Navy. Our own efforts to produce

a mine suitable for very great depths were also proving successful and

anticipations as to manufacture were optimistic. Accordingly plans were

prepared for a barrage across the North Sea, which were given to Admiral

Mayo before he left England on his return to the United States. Without

seriously relaxing our mining operations in the Heligoland Bight, and

without interfering with our mine barrage on the Folkestone-Grisnez

line, we anticipated at this time that we could provide mines for our

portion of the North Sea Barrage by the time that the United States

supply of mines was in readiness to be laid.

Admiral Mayo was also furnished with papers dealing at length with our

naval policy at the time and the intended future policy, both in home

waters and abroad. Papers were given him relating to our air policy, to

the attitude of neutral countries, to the Belgian coast problem, to the

blockade, to the defence of trade (including one on the convoy system),

to such subjects as the defensive armament of merchant ships with guns,

smoke apparatus and mine defence gear, the instruction of the personnel

in their use, and the system of issuing route instruction to merchant

ships. An important statement was also supplied giving a detailed

account of our anti-submarine policy, both at the time and in the

future.

These papers gave the fullest information on the naval problem, and were

intended to put the United States Naval Department in a position to

appreciate the whole position and its many embarrassments, though we

realized that these could be appreciated only by those who, like Admiral

Sims, were in daily contact with the problems. It will possibly be of

further interest if mention is made of some of the points to which

attention was drawn.

Admiral Mayo, for instance, was informed that British naval policy was

being directed in 1917, as during the remainder of the war, to exerting

constant economic pressure upon the enemy with a view to forcing him to

come to terms. We also endeavoured to prevent the enemy from interfering

with the conduct of the war by ourselves and our Allies. In the

effective pursuit of that policy the duty of the Navy involved:

(1) The protection of the sea communications of the Allied armies and

the protection of British and Allied trade.

(2) The prevention of enemy trade in order to interfere with his

military operations and to exert economic pressure.

(3) Resistance to invasion and raids.

It was pointed out that the question at issue in each case was the

control of sea communications, and in order to attain that control

permanently and completely the enemy's naval forces both above and below

water had to be destroyed or effectually masked. As the weaker German

Fleet not unnaturally refused decisive action and as its _destruction_

had hitherto not been achieved, we had adopted a policy of guarding an

area between our vital communications and the enemy's ports, and of

guarding the areas through which the trade and transports passed; these

were the only methods of frustrating attacks made either by surface

vessels or by submarines which succeeded in reaching open waters. It was

pointed out that a combination of these two methods had been in force

during the wars of the eighteenth century, blockades being combined with

the convoy system and the patrol of local areas by frigates, etc.

History, in fact, was repeating itself.

We mentioned that a close blockade of the German North Sea and Baltic

ports presented insuperable difficulties under the conditions of modern

warfare, and the alternative of controlling the Dover and

Norway-Scotland exits to the North Sea had been adopted. The former

protected the communications of the armies in France, whilst the two

combined covered the maritime communications of the world outside the

North Sea and Baltic, and if they could be effectively guarded our first

two objects would be attained.

So far as the Dover exit was concerned we stated that the narrowness of

the waters, with the consequent risk to the enemy from our mines and

torpedoes, had so far acted as a deterrent to his capital ships; we had

to depend on the light forces at Harwich and Dover to deal with any

enemy surface craft attacking the southern area from German ports.

We pointed out that the control of the Norway-Scotland exit depended

upon the presence of the Grand Fleet at Rosyth or at Scapa. This fleet

ensured the safety of all the vessels engaged in protecting trade and in

hunting submarines outside the North Sea.

Mention was made of the fact that the enemy could not open the sea

routes for his own war ships without risking a serious action, and that

so far he had shown no inclination to run that risk. The Battle of

Jutland having been fought in the previous year, any future movement of

the High Sea Fleet into the North Sea would probably be merely with the

object of drawing our capital ships into prepared areas so as to bring

about a process of attrition by mines and torpedoes. Such a movement had

been carried out on August 19, 1916. The reasons which had led to the

adoption of the Orkney-Faroe-Iceland blockade line were also explained.

It was pointed out that in the early stages of the war, the foregoing

general dispositions had sufficed to protect the Allies' communications

and to throttle those of the enemy outside the Baltic. Although enemy

cruisers in foreign waters and a few raiding vessels which had evaded

the blockade had inflicted losses on trade, losses from such causes

could not reach really serious proportions so long as the enemy trusted

to evasion and refused to face the Grand Fleet. The danger of serious

loss from attack by raiding surface craft had also been greatly

minimized by the adoption of the convoy system. But as the enemy's

submarines increased in size, efficiency and numbers, the situation had

been modified, for evasion by submarines of the command exercised by the

Grand Fleet was easy, and our vital sea communications could be attacked

by them without the risk of a fleet action.

So far as the protection of trade was concerned, the effect therefore of

the submarine campaign had been to remove the barrier established by the

Grand Fleet and to transfer operations to the focal areas and approach

routes.

As the situation developed, a policy of dealing with the submarines by

armed patrol craft and decoy ships in these areas had therefore been put

into force. Merchant ships had been armed as rapidly as possible, and in

addition efforts had been made to intercept the submarines _en route_ to

these areas both in the vicinity of German waters and farther afield.

The great area covered by the approach routes and the increasing radius

of submarine operations had made the provision of a sufficient number of

patrol vessels a practical impossibility and had led to a general

adoption of the convoy system as rapidly as the supply of fast small

craft made this possible.

The methods of attacking German submarines before they could reach open

waters, by extensive mining in the Heligoland Bight, with the exception

of Dutch and Danish territorial waters, were also mentioned.

As regards _future_ naval policy it was pointed out that the enemy

submarine campaign was the dominating factor to such an extent that any

sustained increase in the then rate of sinking merchant ships might

eventually prove disastrous.

Mention was made of the fact that the enemy was still producing

submarines faster than the Allies were destroying them; the policy of

coping with submarines after they reached the open sea had not as yet

been sufficiently effective to balance construction against losses, even

in combination with the extensive minefields laid in the Heligoland

Bight.

The future policy was therefore being directed towards an attempt at a

still more concentrated and effective control in the areas between the

enemy's ports and our trade routes, and it was proposed to form some

description of block or barrage through which the enemy submarines would

not be able to pass without considerable risk. Four forms had been

considered:

(1) A method of blocking either mechanically or by mines all the exits

of the submarines from their North Sea or Baltic bases.

(2) A barrage of mines at different depths, from near the surface of the

sea to near the bottom.

(3) A combination of deep mines with a patrolling force of surface craft

and aircraft whose object would be to force the submarines under the

surface into the minefield.

(4) A force of surface craft and aircraft patrolling an area of

sufficient extent to prevent submarines coming to the surface to

recharge their batteries during the hours of darkness.

Admiral Mayo was informed that in our opinion the first scheme as given

above, viz. _that of absolutely sealing the exits, was the only radical

cure for the evil_, but that there were very great difficulties to be

overcome before such an operation could be successfully carried out. He

was shown the plan that had been prepared for a mechanical block of all

the enemy North Sea bases, and he entirely concurred in the

impracticability of carrying it out. Such a plan had been advocated by

some officers and by other people; it was, of course, most attractive in

theory and appealed strongly to those who looked at the question

superficially. When, however, a definite operation came to be worked out

in detail the difficulties became very apparent, and even enthusiastic

supporters of the _idea_ were forced to change their views. It was not a

matter for surprise to me that the idea of sealing the exits from

submarine bases was urged by so many people on both sides of the

Atlantic. It was, of course, the obvious counter to the submarine

campaign, and it appealed with force to that considerable section which

feels vaguely, and rightly, that _offensive_ action is needed, without

being quite so clear as to the means by which it is to be carried out.

In this particular case I informed the clever and able officers to whom

the planning of the operation was entrusted that they were to proceed on

the assumption that we intended to seal the enemy's ports somehow, and

that they were to devise the best possible scheme, drawing up all the

necessary orders for the operations. This was done in the most complete

detail and with great care and ingenuity, but at the end there was no

difference of opinion whatever as to the inadvisability of proceeding

with the operations.

It is to be observed in connexion with this question that sealing the

North Sea bases would not have been a complete cure, since submarines

could still make their exit via the Kattegat, where we could not block

channels without violating the neutrality of other nations.

The final conclusion arrived at _was to use a combination of the last

three alternatives_ provided that _a satisfactory type of mine_ could be

produced in sufficient numbers and a sufficient supply of small craft

provided by ourselves and the United States.

Full details were given to Admiral Mayo of the proposed North Sea

Barrage on a line totalling 230 miles in length, which was divided into

three parts, Areas A, B and C, of which Area A only would be dangerous

to surface vessels.

It was estimated that Area A would require 36,300 mines, and it was

proposed that this area should be mined by the United States forces with

United States mines.

It was proposed that the British should mine Area B, the requirements

being 67,500 mines, and that the United States should mine Area C, for

which 18,000 United States mines would be required.

The reasons governing the selection of the mine barrage area were fully

given, and the advantages arising from the use of the United States

pattern of mine instead of the British mine for Areas A and C were

stated.

Admiral Mayo was also informed of our intention to establish a mine

barrage in the Channel, on the Folkestone-Grisnez line, as soon as mines

were available, with a strong force of patrol vessels stationed there,

whose duty it would be to compel enemy submarines to dive into the

minefield. He was further made acquainted with our intended policy of

still closer minelaying in the Heligoland Bight.

Although Admiral Mayo was not actually informed of the details of the

future policy which it was hoped to adopt in the Adriatic for the

improvement of the Otranto Barrage, various schemes were at the time

being worked out between the British, French and Italian Admiralties,

having as their object the prevention or obstruction of the exit of

enemy submarines from the Adriatic, in the same way as it was hoped to

obstruct German submarines from making their exit from the North Sea

without incurring heavy losses. The great depth of water in the southern

part of the Adriatic constituted the main difficulty facing us in the

solution of this problem. In August, 1917, it was, however, definitely

decided to establish a barrage of nets and mines across the Straits of

Otranto, and the work was put in hand. This became effective during

1918.

The paper on Naval Air Policy showed the aim of the Admiralty to be:

To provide in sufficient numbers a type of airship which would be able

to scout with the Grand Fleet, and, in this respect, to perform the duty

of light cruisers. Airship stations had been established on the East

Coast for this purpose.

To provide also a type of airship for coastal patrol work and for the

escort of merchant ships in convoy. For these airships stations had been

established on the East, South and West Coasts and at Scapa.

To provide a sufficient supply of kite balloons for the work of the

Grand Fleet. Fleet kite balloon stations had already been established at

Rosyth and Scapa, and the resources of the latter station were

supplemented by a kite balloon ship. It was intended also to provide

kite balloons for flotillas or single vessels engaged in submarine

hunting or in convoy work. A large number of kite balloon stations for

anti-submarine work had been or were being established round the coast

for this work.

As to the future programme of rigid airships, Admiral Mayo was told that

it was under consideration to construct three new rigid stations, also

that three new stations for the use of non-rigids for anti-submarine

work were to be established, while it was also proposed to provide

sufficient resources to allow of a number of kite balloons being worked

in vessels between the North of Scotland and Norway and to the eastward

of the English Channel.

Admiral Mayo was also informed that it was proposed to provide

sufficient "heavier than air" craft of various types for the Fleet, both

to insure adequate air reconnaissance and to drive off hostile aircraft.

The Grand Fleet was at the time already provided with three seaplane

carriers, and the _Furious_ and other special vessels were being fitted

to carry aircraft. Many of the armoured vessels and light cruisers of

the Fleet had also been fitted to carry aircraft, whilst the Harwich

light cruiser force possessed one seaplane carrier; two carriers were

devoted to anti-submarine work, and three were employed in the

Mediterranean.

It was further stated that machines for naval reconnaissance were

working from several East Coast stations, and that lighters to carry

seaplanes for more extended reconnaissance and offensive work were under

construction. The work carried out by our naval aircraft off the Belgian

coast, comprising the duty of keeping the coast under constant

observation, of spotting the gunfire of ships, of fighting aircraft and

bombing objectives of importance, were also mentioned, as well as the

work in the Mediterranean, where there were four bases in the Aegean.

The extensive anti-submarine patrol work round the British Isles and in

the Mediterranean was touched upon, there being "heavier than air"

stations at the time at

Houton Bay.

Dundee.

South Shields.

Bembridge.

Calshot.

Portland.

Killingholme.

Yarmouth.

Felixstowe.

Westgate.

Dover.

Newhaven.

Cherbourg.

Plymouth.

Newlyn.

Scilly.

Fishguard.

Steps were being taken to extend the number of stations as soon as

possible, the new programme including stations at such places as

Padstow.

Wexford.

Queenstown.

Berehaven.

Loch Foyle.

Loch Ryan (or in the Hebrides).

Shetlands.

Peterhead.

In the event of the United States being in a position to co-operate in

the work, it was recommended that the three main seaplane stations in

Ireland should be taken over by the Americans, and equipped, manned and

controlled entirely by United States personnel.

In regard to the convoy system a full description of the whole

organization was given, with the results up to date, and details of the

vessels available and still needed for its protection.

Full information was afforded on the subject of the arming of merchant

ships and fitting other defensive measures to them, and the routeing

system in use for merchant ships was described in detail.

In the remarks on our anti-submarine warfare it was pointed out that

anti-submarine measures were carried out both on the surface, under

water, and in the air.

The surface measures were described as follows:

In twelve of the twenty-two areas into which the waters round the United

Kingdom were divided, regular _hunting flotillas_ were at work,

comprising trawlers and motor launches fitted with hydrophones. Before

the institution of the convoy system a few fast vessels, such as

destroyers or "P" boats, had been formed into hunting flotillas, but the

convoy work had necessitated the withdrawal of all these vessels, and

the work of the flotillas had suffered in consequence, the speed of

trawlers being too slow to offer the same prospect of success in such

anti-submarine measures. The flotillas of motor launches which had been

formed were of considerable utility in fine weather, but they could only

operate in comparatively smooth water.

At the time of Admiral Mayo's visit a force of thirty-two trawlers to

work with about six sloops or destroyers was being organized as vessels

became available, to operate in the North Sea with a view to engaging

enemy submarines on passage in those waters.

It was also pointed out to Admiral Mayo that the coast patrol vessels

which were not actually in the hunting flotillas were all engaged in

anti-submarine work and did frequently come into action against the

German submarines.

Finally Admiral Mayo was informed that the convoy system itself was

looked upon as an offensive measure since the German submarines would,

in order to attack vessels under convoy, be forced into contact with the

fast craft engaged in the work of escort and thus place themselves in

positions in which they could themselves be successfully attacked.

Admiral Mayo, during his stay in European waters, inspected some of our

naval bases and paid a visit to the Grand Fleet.

He crossed to France in order that he might see the work being carried

out at French ports by vessels of the United States Navy, and while

returning from this visit he honoured the British Navy by accompanying

Sir Reginald Bacon and myself in H.M.S. _Broke_ to witness a bombardment

of Ostend by the monitor _Terror_. On this occasion Admiral Mayo's flag

was hoisted in the _Broke_ and subsequently presented to him as a

souvenir of the first occasion of a United States Admiral having been

under fire in a British man-of-war. It is satisfactory to record that

subsequent aerial photographs showed that much damage to workshops,

etc., had been caused by this bombardment.

The Admiral and his Staff very quickly established themselves in the

high regard of British naval officers, and it was with much regret that

we witnessed their return to the United States. My own associations with

the Admiral had led to a feeling of great friendship. He left behind him

his Chief of Staff, Captain Jackson, who to our great regret had been

seriously injured in a motor accident.

Admiral Benson's visit took place later in the year. I had written to

him urging him to come across so that he might have first-hand knowledge

of the state of affairs and of the policy being followed. During his

visit the same questions were discussed as with Admiral Mayo, and

important action was taken in the direction of closer naval co-operation

between the Allies by the formation of an Allied Naval Council

consisting of the Ministers of Marine and the Chiefs of the Naval Staff

of the Allied Nations and of the United States. This proposal had been

under discussion for some little time, and, indeed, naval _conferences_

had been held on previous occasions. The first of these during my tenure

of office at the Admiralty was on January 23 and 24, 1917, and another

was held during the visit of Admiral Mayo and at the instigation of the

Government of the United States on September 4 and 5, 1917. On this

latter occasion important discussions had taken place, principally on

the subject of submarine warfare, the methods of dealing with it in home

waters and in the Mediterranean, and such matters as the provision of

mercantile shipping for the use of our Allies.

There was, however, no regular council sitting at specified intervals,

and it was this council which came into being in the early part of

December. Its functions were to watch over the general conduct of the

naval war and to insure co-ordination of the effort at sea as well as

the development of all scientific operations connected with the conduct

of the war.

Special emphasis was laid upon the fact that the individual

responsibility of the respective Chiefs of the Naval Staff and of the

Commanders-in-Chief at sea towards their Governments as regards

operations in hand as well as the strategical and technical disposition

of the forces placed under their command remained unchanged; this

proviso was a necessity in naval warfare, and was very strongly insisted

upon by the Admiralty.

The attention of the Council was directed at the earliest meetings to

the situation in the Mediterranean, where naval forces from the British

Empire, France, Greece, Italy, Japan and the United States were working,

and where the need for close co-operation was most urgent. The real need

in the Mediterranean, as was frequently pointed out, was the inclusion

of the naval forces of all the Allied nations under one single command.

In 1918 strong efforts were made to carry out this policy, and indeed

the actual Admiralissimo was selected, but the attempt failed in the

end.

Both these distinguished American officers were reminded, as indeed they

must have seen for themselves, that the successful combating of the

submarine danger depended largely on the manufacture of material, and

that the resources of this country, with its great fleet and its large

and increasing armies, were so seriously taxed that the execution of the

plans of the Admiralty were being constantly and gravely delayed. The

Admiralty was, indeed, seriously embarrassed by difficulties in the

adequate supply of mines and other means of destroying submarines as

well as of fast craft of various descriptions. The Admiralty, as was

pointed out, were doing not what they would like to do, but what they

could do, both in the way of offensive and defensive action. The

supplies of raw material and labour controlled in large measure the

character and extent of the operations at sea.

The Crisis of the Naval War · 第 5 / 11 章