If someone subjugates a group of people, they take complete control of them, especially by defeating them in a war. 征服
verb [vt. 及物动词] vt. 征服；使服从；克制
Their costly and futile attempt to subjugate the Afghans lasted just 10 years. 他们想征服阿富汗人的意图耗费大量金钱而且无效，只维持了十年的时间。
