《资治通鉴·晋纪·晋纪十二》
李矩进军救援耿稚，汉军凭借黄河拒守，李矩的军队无法渡河。
李矩进兵救之，汉兵临河拒守，矩兵不得济。
Li Ju entered the army to rescue Geng Zhibian, and the Han army relied on the Yellow River to defend themselves. Li Ju's army could not cross the river.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 李矩进兵救之，汉兵临河拒守，矩兵不得济。 [/INST] Li Ju entered the army to rescue Geng Zhibian, and the Han army relied on the Yellow River to defend themselves. Li Ju's army could not cross the river.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 李矩进兵救之，汉兵临河拒守，矩兵不得济。
user
Li Ju entered the army to rescue Geng Zhibian, and the Han army relied on the Yellow River to defend themselves. Li Ju's army could not cross the river.
assistant