I used to be a soldier, part of the quick response forces.
simple example
海军陆战队是精锐的快速反应部队.
The Marine Corps is a crack rapid reaction force.
mdanci.911cha.com
阿富汗安全部队——警察和军方的快速反应部队——已经封锁了市场北区，警告居民不要呆在窗边。
The Afghan security forces - both the police and a quick reaction force from the Afghan army - have sealed off streets in the upmarket district and urged residents to stay away from windows.
dict.youdao.com
新训练的警察，联合国维和部队以及来着非洲和欧洲国家组成的快速反应部队在极力维持安全秩序。
N peacekeepers and rapid reaction forces from African and European countries are trying to enforce security.
dict.youdao.com
作为快速反应部队，他们要对威胁地区安全的事件和有关敌军重要目标的消息作出反应。
As the Quick Reaction Force, they respond to local security threats or news of high-value enemy targets.
