Answer: aggress

AnswerCrossword Clue
AGGRESSAttack first
AGGRESSStart a fight
AGGRESSStart a war
AGGRESSMake the first attack.
AGGRESSAttack without provocation.
AGGRESSSet upon
AGGRESSStrike first
AGGRESSAct hostilely
aggressto behave aggressively toward; attack (often fol. by upon)
aggressto begin to quarrel
aggressto commit the first act of hostility or offense; attack first
aggressto attack first