The Ming–Hồ War or the Ming conquest of Đại Ngu (Chinese: 明入越; Vietnamese: Chiến tranh Đại Ngu–Đại Minh; chu Han: 戰爭大虞 – 大明) was a military invasion of Đại Việt (present-day northern Vietnam; renamed "Đại Ngu" under Hồ dynasty) by the Ming dynasty of China. The campaign began with Ming intervention in support of a rival faction to the Hồ dynasty which ruled Đại Ngu, but ended with the incorporation of Đại Việt into the Ming dynasty as the province of Jiaozhi. The invasion is acknowledged by recent historians as one of the most important wars of the late medieval period, whereas both sides, especially the Ming, used the most advanced weapons in the world at the time.