《晋书·志·第十四章》
二十一年，征讨瑟擅回来，夏堡堕督二十六军就是例子。
二十一年，征孙权还，夏侯惇督二十六军是也。
In the 21st year, the example of Xia Fortress Commander supervising the military of 26 barracks emerged when he returned from punishing Se Shan.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 二十一年，征孙权还，夏侯惇督二十六军是也。 [/INST] In the 21st year, the example of Xia Fortress Commander supervising the military of 26 barracks emerged when he returned from punishing Se Shan.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 二十一年，征孙权还，夏侯惇督二十六军是也。
user
In the 21st year, the example of Xia Fortress Commander supervising the military of 26 barracks emerged when he returned from punishing Se Shan.
assistant