8. The Battle of Dien Bien Phu (1954)
In 1954, during the First Indochina War, French forces established a fortified base at Dien Bien Phu in northwest Vietnam, aiming to cut off Viet Minh supply lines into Laos. However, General Võ Nguyên Giáp’s Viet Minh forces surrounded the base, bringing in heavy artillery and supplies through difficult terrain. After a 57-day siege, the French garrison surrendered on May 7, 1954. This decisive defeat ended French colonial ambitions in Indochina and led to the decolonization movements across Asia and Africa (britannica.com).
