Ayutthaya–Lan Na War (1441–1474) (original) (raw)

The Ayutthaya–Lan Na War (1441-1474) was a border conflict between the Ayutthaya Kingdom (present-day Thailand) and the Lan Na Kingdom (in northern Thailand) that started with the Ayutthayan invasion of southern Lan Na and continued with periodic breaks until 1474. Though the conflict resulted in a stalemate, Lan Na achieved limited territorial gains, but was weakened by internal power struggles and losses sustained during the conflict.