B. Principles:

1. Comparison of thin line versus thin column, regarding: (a)
vulnerability, (b) fatigue, (c) tactical advantage, when
engagement materializes, (e) control of movement and of
fire.
2. Agent between advance and main body.
3. Attack any enemy of reasonable size that attacks main body.
4. Corn as concealment versus corn as obstruction to sight.
5. Vulnerability of charging cavalry.
6. Lieutenant as tactical chief, sergeant as disciplinarian, in
a platoon; except when?
7. Messages concise, not ambiguous, written versus oral?
Repeats.
8. Limitations of use of map. Vegetation changes; errors in
contouring.

Sixth Problem and Seventh Problem: Two Pickets:

A. Definition and Function.--Outpost contrasted with advance guard
in that former is stationed around a camp or bivouac, while latter
precedes a marching column. To check enemy attempting to attack main
body, and hold him till larger force is able to deploy. Consists of
outpost reserve, outpost line of supports, line of outguards
(pickets, sentry squads, and cossack posts), plus sentinels, patrols,
etc.

Picket ordinarily merely warns of an attack, but may offer
resistance.