《宋史·列传·卷二》
第二年正月，又命令陈宜中出使元军军中，约议向元朝称臣。
明年正月，更命宜中使军中，约用臣礼。
In January of the following year, Chen Yizhong was ordered to negotiate with the Yuan army and offer submission to the Yuan dynasty.
<s>[INST] Kindly elucidate the central themes in this passage in English: 明年正月，更命宜中使军中，约用臣礼。 [/INST] In January of the following year, Chen Yizhong was ordered to negotiate with the Yuan army and offer submission to the Yuan dynasty.</s>
Kindly elucidate the central themes in this passage in English: 明年正月，更命宜中使军中，约用臣礼。
user
In January of the following year, Chen Yizhong was ordered to negotiate with the Yuan army and offer submission to the Yuan dynasty.
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