a pre-emptive attack/strike on the military base

对军事基地先发制人的进攻 / 打击

牛津词典

...plans for a pre-emptive strike against countries that may have biological weapons...

先发制人打击可能拥有生物武器的国家的计划

柯林斯高阶英语词典

In a pre-emptive move the Interior Ministry arrested a number of suspected dissidents.

内政部抢先行动，逮捕了许多持不同政见的嫌疑人。

柯林斯高阶英语词典