Answer: iswar

AnswerCrossword Clue
ISWAR"This ..." (declaration of hostilities)
ISWAR" . . . this ...": C. F. Adams
ISWARPro wrestling's "Raw ..."
ISWAR'This --!' (fighting words)
ISWAR30 Seconds to Mars "This ..."
ISWAR"This ...!" (fightin' words)
ISWARThis ...!