《明史·列传·卷四十二》
永乐四年大征安南，以刘俊参赞军务。
永乐四年大征安南，以俊参赞军务。
In the fourth year of Yongle, a large-scale expedition was launched against Annan, with Liu Jun assisting in military affairs.
<s>[INST] Explain the meaning of this Classical Chinese passage in English: 永乐四年大征安南，以俊参赞军务。 [/INST] In the fourth year of Yongle, a large-scale expedition was launched against Annan, with Liu Jun assisting in military affairs.</s>
Explain the meaning of this Classical Chinese passage in English: 永乐四年大征安南，以俊参赞军务。
user
In the fourth year of Yongle, a large-scale expedition was launched against Annan, with Liu Jun assisting in military affairs.
assistant