Dismounted, each trooper moves as in par. 81. If at a halt, the movement of the foragers by the flank is executed by the same commands as when marching. =412.= =Being deployed as foragers, to march to the rear=: 1. =To the rear=, 2. =MARCH.= Each trooper executes an about to the _left_ (pars. 389, 486). To march again to the front the commands: 1. =Forward=, 2. =MARCH=, are given. Each trooper executes another about to the _left_. If a line of foragers be halted while marching to the rear, each trooper turns to the left about and halts, faced to the front (par. 474). Gaits are regulated as in par. 337-_d_. Dismounted, each trooper executes =to the rear= (par. 82). If at a halt, the movement of the foragers to the rear is executed by the same commands as when marching. =413.= The squad may be extended in depth as well as in front. The commands are: 1. =Fours (twos, or troopers) at so many yards distance=, 2. =MARCH.= This movement may be used to cross a fire-swept area when such a course is necessary. The leader indicates the point where the squad is to be reassembled. The fours (twos or troopers) move out successively from head to rear in column or right to left in line. Each element may extend laterally on its guide. The gait is the gallop. =414.= =Being deployed as foragers and in order (par. 470) to assemble=: 1. =Assemble=, 2. =MARCH.= The guide advances and follows the leader. The other troopers close in on the guide and form in =line= upon him in the same relative order in which they were at the moment the assembly was commanded. The leader halts the guide at any time if it is desired to assemble without gaining further ground in the direction of march. The leader, by moving in any desired direction, may regulate the direction toward which the assembly is executed. Gaits are regulated as in par. 337-_e_, the elements other than the base taking a correspondingly faster =gait=. The assembly in each unit is explained for that unit (par. 468-_b_). The leader may, by prior designation of any trooper (e.g., a flank trooper) as guide (par. 373), cause the assembly to be executed on that trooper by the commands and methods just indicated. The troopers always start to assemble in line, but when an assembly in column is desired it may virtually be accomplished, by the leader's designation of a flank trooper as the guide before ordering the assembly and cautioning: =COLUMN= as soon as the assembly begins. The fours, as they successively assemble toward the base, then take their places in column of fours instead of in line; the leader takes post in front of No. 2 (par. 325). If there be not space to advance in column of fours, the assembly in =column of twos or troopers= may be accomplished by corresponding commands and methods.