Countermarch

Pronunciation: koun`t?r-m?rch"
v. i.

1. To march back, or to march in reversed order.
   

Pronunciation: koun"t?r-m?rch`
n.

1. A marching back; retrocession.
2. (Mil.) An evolution by which a body of troops change front or reverse the direction of march while retaining the same men in the front rank; also, a movement by which the rear rank becomes the front one, either with or without changing the right to the left.
3. A change of measures; alteration of conduct.