《新五代史·本纪·晋本纪第九》
十五日，易州戍将孙方谏在狼山战败契丹谐里。十八日，杜重威攻克满城。
甲寅，杜威克满城。
On the 15th day, Yizhou garrison commander Sun Fangjian was defeated by the Khitan in the Battle of Wolf Hill. On the 18th day, Du Zhongwei conquered Mancheng.
<s>[INST] Kindly elucidate the central themes in this passage in English: 甲寅，杜威克满城。 [/INST] On the 15th day, Yizhou garrison commander Sun Fangjian was defeated by the Khitan in the Battle of Wolf Hill. On the 18th day, Du Zhongwei conquered Mancheng.</s>
Kindly elucidate the central themes in this passage in English: 甲寅，杜威克满城。
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On the 15th day, Yizhou garrison commander Sun Fangjian was defeated by the Khitan in the Battle of Wolf Hill. On the 18th day, Du Zhongwei conquered Mancheng.
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