6. Remember to state what you intend to do.
7. In hostile country send two messages by different routes. In
friendly country one will suffice.
8. When the capture of your message is likely, give messenger a
false one that will be easily found and conceal the true message
carefully.

_Return_.--1. Do not return over the same route as you avoid ambuscade
and widen your field of reconnaissance.
2. Report any special features of military value that you have
seen to your C.O.
3. Compliment your men.

(j) _Advance Guard._--"An advance guard is a detachment of the main
body which precedes it and covers it on the march" (i.d.r. 639). The
commander of troops designates the advance guard, the distance between
it and the main body, and also designates a commander. The advance
guard commander if he has more than a battalion designates the
reserve, support, distance between them. If the advance guard is a
battalion or less it would have no reserve, and in that case the
advance guard commander would designate the support, advance party,
and the distance between them. In the former case the support
commander would designate the advance party, and the distance between
the support and the advance party. In both cases the advance party
commander designates the point, and the distance between the point and
the advance party. Usually it is the duty of the advance party to send
out flank patrols. The strength varies from 1/20 to 1/3 of the main
body. Remember "the formation of the advance guard must be such that
the enemy will first be met by a patrol, then in turn by one or more
larger detachments, each capable of holding the enemy until the next