Yongle Emperor's campaigns against the Mongols (1410–1424), also known as Emperor Chengzu's Northern (Mobei) Campaigns (simplified Chinese: 明成祖远征漠北之战; traditional Chinese: 明成祖遠征漠北之戰), or the Yongle's Northern Expeditions (simplified Chinese: 永乐北伐; traditional Chinese: 永樂北伐), was a military campaign of the Ming dynasty under the Yongle Emperor against the Northern Yuan. During his reign he launched several aggressive campaigns, defeating the Northern Yuan, Eastern Mongols, Oirats, and various other Mongol tribes.