This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A contrary or opposing force, especially a military force capable of destroying the nuclear armaments of an enemy.

n. A force that opposes another force.

n. An opposing force.

"He endorsed a version of what the RAND people called "counterforce" - that is, targeting Soviet nuclear and other military forces rather than cities, partly in an attempt to limit the damage those forces could do to Europe and to the U.S. homeland, and partly so as to hold Soviet cities hostage to further strikes and use that threat as a bargaining chip."

harmonisation    force-projection    geekdom    biological-surveillance    automotve