countermarch noun. 
['kaʊntǝmɑ:tʃ] L16.[from COUNTER- 2 + MARCH noun3.]1.  A march (
lit. & 
fig.) in the opposite direction. 
L16.2.  Military History. An evolution by which a column turns to face in the opposite direction while retaining the same order, so that those at the front are finally at the rear. 
M17.3.  A march held as a demonstration opposing another march. 
M20.  [TahlilGaran] English Dictionary ▲
 countermarch verb intrans. & trans. ['kaʊntǝmɑ:tʃ] E17.[from COUNTER- 1 + MARCH verb2.]1.  Military History. (Cause to) execute a countermarch. 
E17.2.  (Cause to) march in a contrary direction; march back. 
M17.  [TahlilGaran] English Dictionary ▲