military activity that aims to limit an enemy's ability to fight, especially by destroying its weapons, military buildings, etc.

A counterforce strategy targets an enemy's forces. 反制战略针对的是敌方的军队。

a physical force that works in the opposite direction to another physical force

Newton's third law states that for every action (force) there is an equal and opposite reaction (counter-force). 牛顿第三定律指出，对于每一个动作（作用力） ，都有一个相等且相反的反应（反作用力）。