Advance Guard:
- Detachment from main body to cover its advance.
- Against surprise for information.
- Push back small bodies.
- Check enemy's advance until deployment in rear.
- Seize good position and locate enemy lines.
- Remove obstacles.
- Strength 1-20 to 1-3 of entire command.
Divisions of Advance Guard:
- Cavalry point.
- Infantry point.
- Advance party.
- Support.
- Reserve.
Leading Troops:
- A detachment protecting the head of a column in retreat.
Rear Guard:
- Detachments protecting the rear of a retreating column.
- Formation like that of advance guard.
Flank Patrols:
- Detachments for protecting the flanks of marching column.