The Battle of Bach Dang was a significant military engagement that took place in 1288 between the forces of the Trần Dynasty of Vietnam and the invading Mongol army. The Vietnamese, led by General Trần Hưng Đạo, employed clever tactics, including the use of wooden stakes placed in the riverbed, to thwart the Mongol fleet. This battle was part of the larger conflict known as the Mongol invasions of Vietnam. The victory at Bach Dang marked a turning point in the struggle against Mongol expansion in Southeast Asia. It solidified the Trần Dynasty's power and demonstrated the effectiveness of guerrilla warfare. The battle is celebrated in Vietnamese history as a symbol of national pride and resistance against foreign domination.