act or be ready to act aggressively
处于攻势，（准备）展开攻势
take the initiative by beginning to attack or act aggressively
发起进攻，主动进攻
security forces took the offensive ten days ago.安全部队十天前发起了进攻。
security forces took the offensive ten days ago.
安全部队十天前发起了进攻。