military A march in the reverse direction or back along the same route.

March back along the same way.

Roget 283: recede, regrade, return, revert, retreat, retire; retrograde, retrocede; back out; back down; balk; crawfish [U.S.], crawl [Slang]; withdraw; rebound etc. 277; go back, come back, turn back, hark back, draw back, fall back, get back, put back, run back; lose ground; fall astern, drop astern; backwater, put about; backtrack, take the back track; veer round; double, wheel, countermarch; ebb, regurgitate; jib, shrink, shy.    turn tail, turn round, turn upon one's heel, turn one's back upon; retrace one's steps, dance the back step; sound a retreat, beat a retreat; go home.    ... show more

Change the order of soldiers during a march.