Advance guard increases in size proportionately with size of command.
Why?

7. Define: (a) Outguard; they constitute small detachments farthest to
the front and nearest to the enemy.

(b) Cossack post; observation group at indicated point consisting of
four men, post single sentinel.

(c) Picket; small command up to platoon placed in line of outguards at
more important points such as road forks.

8. What is an order?

_Ans_.--Orders are used by commanders of divisions and separate
brigades for regulating the movement and supply of field trains,
fixing position of distributing points for rations and forage, in
short, have to do with supplies of all kinds, especially food.

Form:
The heading.
The distribution of troops (in certain orders).
The body.
The ending.

The Body contains:
1. Information about the enemy and our supporting troops.
2. General plan of the commander.
3. Disposition of the troops.
4. Instructions for the trains.