In the reagan administration , it became more proactive and began to take a strategic offensive posture . this period also witnessed the forming of the conception of combating terrorism militarily through preemptive action 里根执政之后,美国反恐怖主义政策开始表现出明显的主动性,转变为战略攻势,以先发制人的军事手段打击恐怖主义等政策观念开始形成。