COUNTERMOVING
Scrabble letter values: C3O1U1N1T1E1R1M3O1V4I1N1G2 = 21
Definition
COUNTERMOVING is the present participle of COUNTERMOVE.
noun 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 of COUNTERMOVE: counterattack