Ming Shilu
According to the "Ming Shilu", Thánh Tông led ninety thousand troops to invade Lan Xang but was chased by the troops of the Malacca Sultanate, who killed thirty thousand Vietnamese soldiers. In 1485, envoys of Champa, Lan Xang, Melaka, Ayutthaya, and Java arrived Dai Viet. In 1470 he sent an anti-pirate expedition in the Gulf of Tonkin, secured the maritime transit. Also in 1475, pirates from Ryukyu Islands and Champa raided the port of Qui Nhơn.