Explanation of Letter Symbols

(_a_)-(_b_) The road on which the Blue regiment is marching. In military

orders and problems roads are designated by naming places located on

them. For example, the Longs-Emmitsburg-Fairplay road would mean the

main road passing through these places. When military maps are made all

cross-roads and road-forks should be numbered and all hills and other

prominent topographical features either designated by their local names

or given letter designations. This will greatly facilitate their

designation in orders and messages. When maps have grid lines on them

the location of points may be designated by the use of coordinates.

(_c_) Some point, a number of miles distant, in the direction in which

the troops are marching.

(_d_) The point on the main road where the support of the advance guard

of the column has arrived. It should be about abreast of (_f_), (see

below).

(_e_) The designation of the flank guard, right or left.

(_f_) The point at which the flank guard is supposed to have arrived.

The point where the Terrain Exercise is to begin.

(_g_)-(_h_) The road on which it is intended that the flank guard is to

march and along which the Terrain Exercise is to be conducted. This road

should lie approximately parallel to and not more than a mile distant

from the road on which the main body is marching. If no such network of

roads exist, the Director may explain to the class the conditions and

assume that the nearest road is about a mile distant and work out the

problem on that assumption. This procedure strains the situation a

little and robs it of some of its reality. The members of the class will

have to make the best of it and will have to draw upon their imagination

to picture it.

(_i_) A locality some miles distant in the direction of which the Blue

force is marching.

(_j_) Localities or places some distance to the flank of the Blue force

and in the direction of the road on which the flank guard is marching.

Terrain Exercises · 第 273 / 523 题