First of the two main parts of an advance guard, the other being the advance guard reserve. It is made up of three smaller elements, in order from front to rear, the advance guard point, the advance party, and the support proper. The advance guard support protects the advance guard reserve.
ADVANCE GUARD SUPPORT
Meaning of ADVANCE GUARD SUPPORT in English
DOD English dictionary of military terms. Английский словарь военных терминов DOD. 2012