"Surprise is at all times the assailant's strongest weapon."--"Field
Service Regulations," vol. ii. (1920).
The aim of every commander who possesses the power of manoeuvre is to
seek out the enemy and destroy his organised forces. The Attack is the
culminating point of all manoeuvres to this end, and every commander
will endeavour to achieve his aim by a sudden and unexpected assault on
a part of the enemy's defences.
The achievement of this aim is only possible when a commander has
assembled a sufficient force for his purpose, and has obtained, by
reconnaissance and by fighting, information as to the vulnerability of
the hostile position. The commander will then endeavour to break the
enemy's formation so suddenly as to disconcert all his plans; to retain
a compact force with which to follow up the blow without giving the
enemy a moment's breathing space; to drive a wedge into the heart of
his disordered masses, forcing his wings asunder; and to pursue and
annihilate the scattered forces of the enemy.
"Unless a decision is quickly obtained in the opening weeks of a modern
campaign the opposing armies tend to become immobile, chiefly owing to
the great power conferred on the defence by modern armaments. The
armies will then be distributed in great depth, and the attackers are
faced with the necessity of breaking through not one position only, but
a series of positions, extending back to a depth of several miles"
("Infantry Training, 1921").
Penetration, followed by the sundering of the Franco-British Armies,
was clearly the intention of the German {52} High Command in the
_Second Battle of the Somme_, which opened on March 21, 1918. The
German Armies had entrenched themselves after the First Battle of the
Marne (September, 1914), and for 43 months had been confronted by the
Allied Nations of Britain, France, and Belgium, reinforced at the close
by Portuguese troops and by the National Army of the United States.
Within the investing lines of the Western Front the German Armies were
besieged, the barrier reaching from the Belgian coast to the frontier
of Switzerland, while the armies of Austria-Hungary were similarly
penned in by the army of Italy, from Switzerland to the Adriatic. The
internal collapse of Russia, in 1917, enabled von Hindenburg to assume
the offensive, with upwards of 1,500,000 men released from the Eastern
Front, and part of this reserve power was projected, with the
Austro-Hungarian Armies, in a fierce attack on the Italian lines. The
success of this manoeuvre continued until reinforcements were
dispatched from other parts of the Allied lines, and a diversion in the
region of Cambrai by the British III. Army, under Sir Julian Byng
(November 20, 1917), prevented the dispatch of further German reserve
power to the Italian Front, and necessitated a counter-thrust in
France. The battlefields of France again resumed their importance as
the vital point in the theatre of operations, and in the spring of
1918, profiting by the improved positions and prospects in the West,
Ludendorff attempted to break through the investing lines on a 50-mile
front. The attack was heralded by a terrific bombardment, and
culminated in a desperate thrust against the British Armies north and
south of the River Somme, the points of penetration aimed at being the
British right, where it was linked up with the French on the River
Oise, in the neighbourhood of La Fère, and the British line of
communications in the neighbourhood of Amiens. The whole British line
opposite the thrust was hurled back and the territory regained by the
Franco-British {53} advance on the Somme in July, 1916, was recaptured
by the German Armies. But this was not a battle for towns or
territory, as the German hammer blows were intended to drive a wedge
between the British and French Armies, to roll up the British flank
northwards to the sea-coast and the French flank southwards to Paris,
and to capture the main line of communication between these Northern
and Southern Armies. By skilful reinforcement of threatened points,
Marshal Haig frustrated the primary object of the attack, and by the
aid of the French Armies the whole line fell back, disputing the ground
with the utmost resolution, and maintaining the line without losing
touch between the south and north. The German wedge was thrust in, but
every attempt to effect a breach and to pour through the line was
frustrated by the Allies. During the battle the French and British
Armies became intermingled, and to preserve unity of control a
Generalissimo was appointed in the person of General Foch, who had
commanded the French IX. Army at the First Battle of the Marne in
September, 1914, and the French Armies of the Somme during the advance
in July, 1916. General Pershing, commanding the Army of the United
States, gave a free hand to the Generalissimo to incorporate American
troops wherever they might be needed in the field, and Marshal Haig and
General Retain remained in command of the British and French Armies.
METHODS OF ATTACK.--The object of every attack is to break down the
enemy's resistance by the weight and direction of fire and to complete
his overthrow by assault, by the delivery of a decisive blow with as
large a portion as possible of the attacking force against a selected
point or portion of the enemy's position. The term "Decisive Attack"
does not imply that the influence of other attacks is indecisive, but
rather that it is the culmination of gradually increasing pressure
relentlessly applied to the enemy from the moment when contact with him
is first obtained.
{54}
TWO PLANS OF ATTACK.--There are two plans of attack. In the first, the
direction in which the decisive blow is to be delivered is determined
beforehand; an adequate force is detailed and pushed forward for this
purpose, and at the same time another part of the force is detailed to
attack another portion of the enemy's position, to keep his attention
there, to pin his troops in position, to prevent him sending
reinforcements to the part mainly threatened, and ultimately to drive
home with the successful assault of the main attack. The rest of the
force is small and is retained in General Reserve to meet emergencies.
In the second plan, a general action is developed by a part of the
attacking force and the remainder is retained in General Reserve, to be
thrown in when the opportunity arrives, at the right time and in the
right place. In this case, the "remainder" is not less than half the
available force.
The first plan can be adopted when the commander of the attacking force
has definite information as to the extent of the enemy's position, when
he knows where its flanks rest and when he knows the approximate
strength of the forces arrayed against him. It must also be possible,
without undue risk, to divide the attacking force into parties of such
strength that neither can be overwhelmed by the enemy in detail, and it
is to be noted that in the case of a serious check there is only a
small General Reserve to restore the battle. The second plan can be
adopted when information is incomplete, and owing to the strong force
retained by the commander in General Reserve, the situation can be
exploited and developed by fighting without undue risk.
STRENGTH OF THE ATTACK.--It must always be remembered that a commander
can never be too strong when making an attack, for he can never be
perfectly sure of what force he may encounter, or at what moment the
adversary may make a counter-attack. An attack {55} on an enemy
presupposes a superiority of force at the place where the attack is
made, for war is but the art of being stronger than the enemy at the
right place at the right time, and for an attack to have a reasonable
hope of success the attackers, at the point where the penetration takes
place, must be superior.
DISPOSITION OF THE TROOPS.--Each phase of the Attack will normally
require three separate bodies of troops for its execution: a _Forward
Body_ to seek out for, and when located attack, the enemy along the
whole front of the sector allotted to it and by relentless pressure to
wear down the enemy's resistance in order to discover the weak portions
of the defence; _Supports_ to penetrate the weak portions of the
defence and forthwith to attack the flanks and rear of those portions
of the defence which are holding up the Attack; with Local Reserves for
dealing with local counter-attacks; and a _General Reserve_ by means of
which the commander exploits success or retrieves failure.
THE FORWARD BODY, THE SUPPORTS, AND THE LOCAL RESERVES.--The paramount
duty of all leaders in the firing line is to get their troops forward,
and if every leader is imbued with the determination to close with the
enemy, he will be unconsciously assisting his neighbour also, for, as a
rule, the best method of supporting a neighbouring unit is to advance.
But an attack is often held up by well-directed machine-gun fire, and
by determined and well-trained riflemen in concealed or well-prepared
positions. The tactics to be pursued under these circumstances are
thus outlined in "Infantry Training, 1921": "When forward troops are
held up by the enemy's organised fire at close ranges they must keep
him pinned to his ground and absorb his attention by maintaining a
vigorous fire and working their way closer when opportunity offers. It
will be the duty of the Supports to turn the flank of, and enfilade,
that portion of the enemy's defences where a garrison is opposing {56}
the Forward Body. To achieve this, Supports may have to quit their
direct line of advance and follow in the wake of a neighbouring unit,
which is able to advance. It must constantly be borne in mind that
pressure should be brought on the enemy by supporting troops in places
where the attack is progressing rather than where it is held up, never
by the mere reinforcement or thickening up of a line of troops who have
been unable to advance. There must be no slackening of pressure,
meanwhile, by the forward troops who are temporarily held up, or the
defenders will be able to turn their attention to the flanking attacks
which are being directed against them." The Local Reserves are for
local counter-attacks by fire or movement against similar efforts by
the Local Reserves of the enemy. In modern campaigns this work is
effectively carried out by the overhead fire of machine guns
distributed in depth, and the mobile Local Reserves may thus consist of
smaller units detached for the purpose by the Forward Body or by the
Supports. During the great German offensive in the spring of 1918 the
_Attacks on the Somme and the Lys_ were constantly held up by the
vigour and tenacity of the Franco-British defence, and to meet the
necessities of the case the following instructions were issued by the
German General Staff: "If the assaulting troops are held up by
machine-gun fire they are to lie down and keep up a steady rifle fire,
while Supports in the rear and on the flank try to work round the
flanks and rear of the machine-gun nests which are holding up the
Attack. Meanwhile, the commander of the battalion which is responsible
for the Attack is to arrange for artillery and light trench-mortar
support, and should protect his own flanks from machine-gun fire by
means of smoke."
THE GENERAL RESERVE.--In a modern campaign against civilised troops it
will seldom, or never, happen that the efforts of the Forward Body,
Supports, and Local Reserves will annihilate the enemy and so prevent
him from regaining cohesion and fighting power. Even if {57} every
part of the position against which an assault is delivered is captured
and held, the enemy will not, by that means alone, cease to exist as a
fighting force, and if he is permitted to withdraw with a semblance of
order and moral the work of the Attacking Force will be of little
avail. The destruction of the enemy and not the mere capture of the
ground of the encounter is the ultimate aim of the commander. He will,
therefore, accept the best available opportunity for the destruction of
the enemy by overwhelming them in some part of the battlefield during
the successful operations of his Attacking Force. It may, however,
happen that the efforts of the Attacking Force are generally
unsuccessful and the enemy may be on the point of gaining the upper
hand. By means of the General Reserve the commander exploits the
success or retrieves the failure of the Attacking Force. The commander
will have selected some point or position in the enemy's defensive
system against which he can direct his decisive attack. This point
cannot, as a rule, be determined until it has been revealed by the
successes of the Forward Body and the Supports, and when it has been
selected it must be struck unexpectedly and in the greatest possible
strength. While, therefore, the Forward Body, Supports, and Local
Reserves must be adequate in numbers for the task allotted to them, a
commander will generally retain about half his available force for the
delivery of the Decisive Attack, and when this decisive blow has been
delivered the Reserve will carry on the pursuit of the beaten enemy
until such time as other Infantry, or Cavalry, or Tanks, have caught up
and passed them. If the attacking troops fail to obtain their
objective the commander has at his disposal the means of relieving
exhausted troops and of dealing with the "decisive counter-attack" of
the enemy.
THE COMMANDER'S PLANS.--Once troops are committed to the assault the
commander is powerless to divert them to another purpose. His control
is exercised in {58} the correct interpretation or adaptation of his
original plan by his subordinate commanders. Before launching his
troops to the attack in accordance with the decisions arrived at from
information received, the commander will assemble his subordinates and
the representatives of co-operating arms or formations in order that
his plans may be explained. This conference should be held at such a
time as will enable his subordinates to explain their _rôle_ to the
sub-unit commanders. Wherever possible the conference should be
preceded by a personal reconnaissance of the ground over which the
attack is to be made, otherwise a map of the district concerned must be
substituted for the actual view.
The commander will be influenced in his plans by the state of the
campaign at the time of the decision to attack. In the opening stages
of a campaign in a thickly populated country, and generally throughout
a campaign in less settled districts, a war of manoeuvre will lead to
the "Encounter Battle," and the objective to be aimed at will be
limited only by the power of endurance of his troops, the weather
conditions, and the possibility of supplying his victorious troops with
ammunition and food. Under other conditions, the objective will be
subject to further limitations, as the defensive position will be
organised in great depth, and while effective penetration will thus be
more difficult to achieve it must, of necessity, be accompanied by
widening in proportion to its depth in order that space for manoeuvre
and facility for communication may be secured. The Infantry Attack
will be conducted on the same lines in both forms of battle, but the
greater the organisation of the defensive position the more limited
will be the depth to which the attack can be carried on and the greater
difficulty will there be in launching reserves in pursuit.
THE POSITION OF ASSEMBLY.--A column in march formation will very rarely
move to its attack position, or "jumping-off place," from column of
route except {59} where there are concealed lines of approach to the
spot. A Position of Assembly will therefore be assigned, and this will
be chosen with a view to cover for the troops and facilities for the
issue of food and hot drink, the distribution of ammunition and the
filling of water bottles. As a general rule, it is left to the
battalion commander to select Positions of Assembly for each of his
companies. When large bodies of troops are assembled with a view to
immediate action, it must always be remembered that large forces cannot
be moved by a single road if all arms are to be brought into action at
the right moment. In April, 1864, General Banks, with 25,000 U.S.
troops, moved from Grand Ecore to _Pleasant Hill_ in the Red River
Valley. Although lateral roads existed, his column marched on one main
road only, and twenty miles separated his front and rear. As he came
into action with General Forrest, of the Confederate Army, the head of
his column was defeated and thrown back again and again by forces
inferior in total strength, but superior on the field of the encounter.
Had General Banks used two or more parallel roads, which were available
for his use, the Confederates on the spot would have been quickly
overpowered.
THE ATTACKING FORCE.--The commander must decide against which portion
or portions of the hostile position, or along which lines of advance,
his Fire Attack shall be developed. As the object of this movement is
to pin the enemy to his position, to wear down his resistance
generally, and particularly at the point where the Decisive Attack is
to be delivered, as well as to effect a lodgment in the position, it is
clear that the greater the extent of the objective the better, and one
or both flanks should be threatened if possible. But whenever a Fire
Attack is developed it must be in sufficient strength to occupy the
enemy's attention fully and it must be carried through with vigour once
begun. One {60} to three rifles per yard of the objective to be
assailed is generally regarded as the requisite strength of the Forward
Body, Supports, and Local Reserves. At _St. Privat_ (August 18, 1870)
a first and second line made a frontal attack and came under fire of
the French chassepots, to which their own shorter-ranged rifles could
make no effective reply. The lines pressed on, but were ultimately
brought to a standstill through lack of reinforcements, which could
have been sent up against the flank of the fire position which was
holding up the attack, under cover of the fire of the troops in
position, and would thus have carried the Forward Body to the assault.
Equally unsuccessful was Osman Pasha's attempt to break through the
investing lines at _Plevna_ (December 10, 1877). With 15,000 troops he
pierced the Russian lines, and another resolute effort would have
carried the sortie through the investing forces. But the 15,000
Supports could not get out of the town as the bridges and gates were
blocked with fugitives and wagons.
THE DECISIVE ATTACK.--The commander must also decide the point and
direction of the Decisive Attack. This will be made on a part of the
front or on a flank, and it may be predetermined in accordance with
information concerning the hostile dispositions, or it may have to be
ascertained by further fighting. The advantages of a _Frontal Attack_
are that, if successful, the enemy's force is broken in two parts, the
separated wings may be driven back in divergent directions and
overwhelmed in detail, and a decisive victory is thus obtained. The
disadvantages are that the force assaulting a part of the enemy's front
draws upon itself the concentrated fire of the whole hostile line, and
unless the Fire Attack can master this fire the decisive blow will be
held up, while an unsuccessful frontal attack invites the enemy to
advance and to envelop the assailants. The advantages of a _Flank
Attack_ are that {61} the enemy's line of retreat is threatened, and
only the threatened flank can concentrate its fire on the assailant.
The disadvantages of a Flank Attack are that the enveloping troops have
to face a similar danger on their own outer flank, for upon this point
the defender will almost certainly direct his counter-stroke, and for
this reason a decisive blow on the enemy's flank must be followed up by
strong reserves. The flank chosen for attack will be that which
affords the best opportunities for converging fire from the supporting
artillery, which gives the best line of advance for the infantry, and
where success will have the most decisive results, the last depending
mainly on the extent to which the enemy's line of retreat is
threatened. Where the various requisites are in conflict, the flank
affording the greatest advantages for converging fire from the
artillery will be chosen. Nothing destroys the moral of men in action
so speedily and effectually as a flank attack, and except by this
method good infantry will seldom be beaten.
A decisive attack, to be completely successful, must be followed up by
fresh troops before the assaulting waves have been checked. Lee had
crossed the Potomac and desired "to defeat the last army of the
Federals in the east and drive the Northern Government from
Washington." The battle of _Gettysburg_ lasted three days (July 1-3,
1863). On the first, the army of Northern Virginia was uniformly
successful; on the second, the fortunes of battle swayed to and fro; on
the third, Lee decided to make a Napoleonic decisive attack with half
his available troops against Meade's centre. But the spirited attack
of the first 15,000, after penetrating the line, was checked, and the
remaining 15,000 did not arrive in support, so that the attack died
down, was repulsed, and withdrew in disorder.
At _Chattanooga_ (November 25, 1868) Grant's decisive attack was
successful, although delivered against a part of the position which
appeared to be impregnable, on account of the strength of the attack,
through {62} distribution in depth; 25,000 men were hurled against the
entrenchments in three lines, and the support of the third line carried
the waves of the attack through the defences.
DETAILING THE UNITS.--The commander will detail the units for carrying
out the Fire Attack, which will generally require one to three rifles
per yard of the objective. This force will be placed under a definite
commander, who will distribute it into a Forward Body to develop the
attack in the firing line; Supports, to enable the Forward Body to
assault the position; and Local Reserves to maintain or restore the
advantages gained, their main function being to repel counter-attacks
by similar bodies of the enemy and to maintain the offensive spirit.
The commander will also detail the units for carrying out the Decisive
Attack, which will require three to five rifles per yard of the portion
of the position against which it is projected. This force, under a
definite commander, is distributed for the attack in depth, so that the
strength and weight of the blow carries it home against all opposition.
The force is retained by the commander of the whole attacking troops,
to be thrown in at the right time and in the right place. It also
remains in hand to restore the battle in case of an unexpected check,
or to cover the withdrawal of the remainder of the troops if it is
desired to break off the engagement.
THE ARTILLERY.--The position of the artillery will be settled in
consultation with the artillery commander, the decision resting on the
objects in view, which are, to assist the infantry in its advance by
keeping down hostile gun and rifle fire--therefore, in the initial
stages, a commanding position is required; during the decisive stage
concentration on the objective of the decisive blow is required; and
after the successful assault guns may be required to be hurried forward
to repel {63} counter-attacks, to break down protracted opposition, and
to complete the rout by harassing the fleeing enemy. When the attack
is directed against a position the defence of which is known to have
been elaborately organised, a pre-arranged covering fire in the form of
an artillery barrage, lifted in successive stages as the attack
advances, may require to be organised some time before the attack is
launched. It will be necessary to detail an escort for the guns,
unless the distribution of the troops for the attack already provides
such protection. At the _Battle of Verneville_ (August 18, 1870) the
9th Prussian Corps Artillery had been pushed forward against the French
position at Armandvillers-Folie. The fire of the French infantry
caused a loss of 13 officers and 187 other ranks, and one battery was
disabled, before the guns were withdrawn. There was no infantry escort
to keep the attacking riflemen at a distance. At the _Battle of
Colenso_ (December 15, 1899) two batteries of field artillery advanced
into action without an escort, and without previous reconnaissance
unlimbered on a projecting spit of land in a loop of the Tugela River.
Frontal fire from hidden trenches on the opposite bank and enfilade
fire from a re-entrant flank killed all the horses and the greater part
of the personnel, and although the utmost gallantry was shown by all
ranks ten of the twelve guns were left in Boer hands. Infantry
regimental officers and battalion commanders must be acquainted with
the amount of ammunition carried by their accompanying artillery, in
order that ammunition may not be wasted by calling for fire on targets
of secondary importance. All reserves, whether they have been
specially detailed or not for the purpose, must of their own accord
make every effort to assist in getting forward guns and ammunition.
One of the outstanding lessons of the War of 1914-1918 is the
possibility of placing even the heaviest artillery close behind the
infantry fighting line owing to the mobility afforded by motor traction
and to the security against {64} counter-attack provided by the deadly
fire of the magazine rifles and machine guns of their escort, and of
the Lewis guns allotted to the batteries themselves.
THE CAVALRY.--The opportunities for cavalry action in an attack depend
upon the character of the defensive operations. Against a highly
organised defensive position there will be no openings for mounted
troops until a wide penetration gives space for manoeuvre. Before the
attack during an "Encounter Battle" the cavalry will have been out on
reconnaissance in front of the attacking force; during the attack they
may be called on to assist by dismounted fire action, and by local
counter-strokes as mounted troops (against cavalry, or against infantry
disorganised by the breakdown of a movement), but must not be allowed
to impair their speed or freshness; after the successful assault the
Pursuit is their special duty, not necessarily on the heels of the
enemy, but on lines parallel to their retreat, to hamper his movements,
to round up stragglers, and to threaten their communications.
Generally speaking, such a position as is required will be found on a
flank, or slightly in advance of a flank of the attacking force.
"Cavalry make it possible for a general to adopt the most skilful of
all manoeuvres, the converging attack, and properly handled, as at
_Appomattox_ or _Paardeberg_, to bring about the crowning triumph of
Grand Tactics, the hemming in a force so closely that it has either to
attack at a disadvantage or to surrender" (Henderson). In the
Mesopotamian campaign a surprise attack of General Sir S. Maude's
forces on September 27-29, 1917, against the Turkish forces assembling
near _Ramadie_, 65 miles north-west of Baghdad, was converted into the
surrender of the Turkish commander and about 4,000 all arms by the
enveloping tactics of the Anglo-Indian Cavalry Division. A similar
manoeuvre on March 26, 1918, by the cavalry of the Mesopotamian Field
Force (commanded at that time by General Sir W. R. Marshall, {65} who
succeeded after General Maude's death from cholera), resulted in the
surrender of over 5,000 Turks, including a divisional commander, 22
miles north-west of Hit. The prisoners were fugitives from the battle
of _Baghdadieh_, and the cavalry were astride their communications.
"On the morning of the Armistice (November 11, 1918) two British
Cavalry Divisions were on the march east of the Scheldt, and before
orders to stop reached them they had already gained a line 10 miles in
front of our infantry outposts. There is no doubt that, had the
advance of the cavalry been allowed to continue, the enemy's
disorganised retreat would have been turned into a rout" (Sir D. Haig's
Dispatches). The absence of cavalry at the critical moment has often
decided the issue of a campaign. After the action of _Gaines's Mill_
(June 27, 1862) General J. E. B. Stuart was dispatched by Lee with the
Confederate cavalry on a false scent to White House, south of the York
River, to which base Lee believed McClellan to be retreating. But
McClellan had shifted his base to Harrison's Landing, on the James
River, and the Confederate cavalry did not regain touch with the Army
of the Potomac until July 3, two days after the failure of Lee's attack
on Malvern Hill. Had Stuart been available with his cavalry throughout
that critical period McClellan's huge trains would have fallen an easy
prey to the Confederate horsemen, and the roads through the forests and
swamps to Malvern Hill could have been blocked. Absence of cavalry
before the first day of _Gettysburg_ (July 1, 1863) hampered the
Confederate leaders, and lack of information caused them to act with
unnecessary caution when boldness would have carried everything before
them. General Stuart had once more been sent away on a raiding
expedition. After the victorious attack of General Early's division a
handful of General Buford's U.S. cavalry enabled the defeated 1st Corps
of Meade's army to save their guns and to retire unmolested. A
thousand {66} Confederate sabres would have brushed Buford aside, and
July 1 would have been disastrous to the National cause.
During the German offensive of March-July, 1918, "even two or three
well-trained cavalry divisions might have driven a wedge between the
French and British Armies. Their presence could not have failed to
have added greatly to the difficulties of our task" (Sir D. Haig's
Dispatches). During the _Battle of Cambrai_ (November 20, 1917) a
squadron of the Fort Garry Horse crossed the Scheldt Canal, and after
capturing a German battery and dispersing a large body of infantry,
maintained itself by rifle fire in a sunken road until nightfall, when
it withdrew to the British lines with its prisoners. During the
_Battle of Amiens_ (August 8-18, 1918) the cavalry were concentrated
behind the battle front by a series of night marches, and on the first
day of the battle they advanced 23 miles from their position of
assembly. Throughout the battle they rendered most gallant and
valuable service. During the Second _Battle of Le Cateau_ (October
6-12, 1918) cavalry were instrumental in harassing the enemy in his
retreat and preventing him from completing the destruction of the
railway, and when the infantry were held up by heavy machine-gun fire
from Cattigny Wood and Clary "a dashing charge by the Fort Garry Horse
gained a footing in Cattigny Wood and assisted our infantry to press
forward. Further east, Dragoon Guards and Canadian Cavalry were
instrumental in the capture of Hennechy, Reumont, and Troisvilles" (Sir
D. Haig's Dispatches). In the early stages of the campaign in _North
Russia_ (August-September, 1918) a handful of cavalry on either bank of
the North Dwina River could have kept the Bolshevik forces constantly
on the run, and could have prevented the successive reorganisation of
their demoralised forces, which the slower progress of the pursuing
infantry was unable to accomplish. A few squadrons of cavalry could
have dispersed the whole {67} Bolshevik force in the Archangel
Province. Tanks are usefully employed in the pursuit, as artillery,
the only effective enemy of the tank, is unlikely to remain in action
with the rearward troops of a disorganised enemy; and a new terror has
been added to the pursuit by the advent of self-propelled, man-carrying
Aircraft, armed with machine guns and bombs, and possibly even with
light quick-firing artillery. During the final stages of the
victorious _Allied Advance_ in November, 1918, the retreating German
Armies were continuously harassed from the air. "Throughout the day
(November 5, 1918) the roads, packed with the enemy's troops and
transport, afforded excellent targets to our airmen, who took full
advantage of their opportunities, despite the unfavourable weather.
Over 30 guns, which bombs and machine-gun fire from the air had forced
the enemy to abandon, were captured by a battalion of the 25th Division
in the field near Le Presau" (Sir D. Haig's Dispatches).
THE ROYAL ENGINEERS.--The position and employment of the Royal
Engineers will be determined by the commander who issues orders for the
Attack, and as the main function of this corps in the Attack is the
removal or bridging of obstacles to the advance, and the strengthening
of the position when captured, the Royal Engineers will probably remain
with the troops to which the decisive attack is entrusted.
MEDICAL ARRANGEMENTS.--The position of hospitals and clearing stations
will be settled in consultation with the S.M.O. Aid posts and advanced
dressing stations will be established under battalion arrangements in
connection with the medical officer of the units concerned.
SUPPLY.--The position of the Train, with its reserve supplies of
ammunition and of food for men and horses, will depend upon facilities
for communication with the attacking force and upon security against
artillery fire {68} or surprise attack from the air or land. The
position will probably be well in rear, and at the junction of roads
leading forward to the attacking troops. Rations will be brought up to
units under arrangements by the commanders of the battalion or other
units concerned.
THE COMMANDER'S POSITION.--The position of the commander who issues the
orders for the Attack must be fixed, and must be made known to
subordinate commanders, as it will be the place to which reports will
be sent. In the case of a small force the commander will generally
stay with the General Reserve; if the force is fairly large, and
composed of all arms, he will probably be on the main artillery
position; but in the case of a large force he should be well out of
reach of the distraction of local incidents. If the commander of a
large force moves from his stated position he must leave a senior
officer of his staff to represent him on the spot and to forward urgent
communications to him in his changed position. In the case of a small
force a commander who vacates his stated position must arrange to leave
a runner in the position stated as his headquarters, in order that
messages may reach him without delay.
BATTLE REPORTS.--The successful exploitation of success depends largely
on the accuracy of the information gained by the commander from all
parts of the battlefield. Reports are required from all who have
information to impart and they should be made out on previously
prepared message cards, stating the exact position of the sender at the
time of the report; the progress made by the unit under the command of
the sender, or by neighbouring or other units whose action has been
observed; the degree of the enemy's resistance; enemy movements; and
the plans of the officer making the report and the method to be adopted
in carrying out such plans.
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REORGANISATION AND PURSUIT.--Once a successful assault has been
delivered, subordinate commanders must immediately regain control of
their commands, and must see that the fleeing enemy is pursued by fire,
while local reserves follow up and secure the position against
counter-attack. Superior commanders must take steps to organise the
pursuit, to cut off the enemy's line of retreat, and to complete his
overthrow. No victory is ever complete if the enemy is permitted to
retire unmolested from the field of battle, and given time to recover
order and moral. "Never let up in a pursuit while your troops have
strength to follow" was a favourite maxim of Stonewall Jackson. The
pursuit is the task of the infantry until it is taken over by aircraft,
cavalry, and tanks, and the limits to which the infantry will carry the
pursuit will be fixed by the commander, who will bear in mind the
principle that "Success must be followed up until the enemy's power is
ruined" ("Field Service Regulations," vol. ii. (1920)). If the fruits
of victory are to be secured the work must be put in hand whilst the
enemy is still reeling under the shock of defeat. A few hours' delay
gives him time to recover his equilibrium, to organise a rearguard, and
to gain several miles on his rearward march. In modern warfare motor
transport may enable the comparatively immobile infantry to achieve the
mobility of cavalry, if arrangements for embussing them have previously
been made, and in a few hours infantry may thus be transported beyond
the reach of pursuit.
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