《资治通鉴·宋纪·宋纪六》
甲辰，魏军舍弃辎重，率轻骑袭击柔然。
甲辰，舍辎重，以轻骑袭柔然。
On Jiachen day, the Wei army abandoned their baggage and, mounted on light cavalry, attacked Rouran.
<s>[INST] Kindly elucidate the central themes in this passage in English: 甲辰，舍辎重，以轻骑袭柔然。 [/INST] On Jiachen day, the Wei army abandoned their baggage and, mounted on light cavalry, attacked Rouran.</s>
Kindly elucidate the central themes in this passage in English: 甲辰，舍辎重，以轻骑袭柔然。
user
On Jiachen day, the Wei army abandoned their baggage and, mounted on light cavalry, attacked Rouran.
assistant