Countermove

v. t. & i.	1.	To move in a contrary direction to.
n.	1.	A movement in opposition to another.

Noun

1.

countermove - an attack by a defending force against an attacking enemy force in order to regain lost ground or cut off enemy advance units etc. Synonyms: counterattack

action, ad hoc measure, answer, artifice, contrivance, coup, course of action, demarche, device, dodge, effort, expedient, gimmick, improvisation, jury-rig, jury-rigged expedient, last expedient, last resort, last shift, makeshift, maneuver, means, measure, move, pis aller, resort, resource, shake-up, shift, solution, step, stopgap, stratagem, stroke, stroke of policy, tactic, temporary expedient, trick, trump, working hypothesis, working proposition