Rear guard--1/6 of escort.

What places are most favorable for attacking convoy?

When passing through woods, defile, or over bridge, when going around
sharp bends in the road; when convoy is forming corral.

12. Discuss uses of the various arms in combat.

_Ans._--Infantry: The most important arm, charged with the main work
of the battle.

Artillery: Supporting arm of infantry. Its target is the opposing arm
most dangerous to the infantry.

Cavalry: Reconnaisance before combat, support of other arms during
combat.

13. What is the difference between the attack and the assault?

_Ans._--In combat where the force is as large or larger than a
division, a simultaneous advance against the entire hostile front is
out of the question. Attack is made up of a number of local combats.
Some where enemy is engaged with view to driving him out. This is
called the assault. Other parts of attack with fewer troops simply to
keep the enemy from coming to the support of those troops of the
assaulted lines. The entire advance against the enemy is the attack.

After the firing lines have advanced some distance the weak and the
strong points of the enemy's lines are disclosed. The weak points of