防御
defense
积极~军事战略military strategy of active defense/消极~军事战略military strategy of passive defense/由~转入进攻go over from the defensive to the offensive/处于~地位be on the defensive/~外来侵略guard against external aggression /~部队defending force or troops;defense unit/~工事defenses;fortifications;defense works/~力量defense capabilities/~武器defensive weapons/~协定defense agreement /~性军备defensive armament /~性的国防战略national defense policy that is defensive in nature/~性投资defensive buy/~性投资策略defensive investment strategy/~战defensive war (or warfare)