Answer: firststrike

AnswerCrossword Clue
FIRSTSTRIKEInitial use, as of weapons
FIRSTSTRIKEA prospector gives thanks for a ...
FIRSTSTRIKEInitial use of nuclear weapons
FIRSTSTRIKERisky nuclear war strategy
FIRSTSTRIKENondefensive military move
FIRSTSTRIKEAttack before being attacked