《史记·七十列传·廉颇蔺相如列传》
长期驻守代地雁门郡，防备匈奴。
常居代雁门，备匈奴。
He was stationed in Daijun and Yanmen Commandery to defend against the Huns for a long time.
<s>[INST] Convert the following English text into Classical Chinese: He was stationed in Daijun and Yanmen Commandery to defend against the Huns for a long time. [/INST] 常居代雁门，备匈奴。</s>
Convert the following English text into Classical Chinese: He was stationed in Daijun and Yanmen Commandery to defend against the Huns for a long time.
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常居代雁门，备匈奴。
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