Answer:
The correct answer is the withdrawal of French forces from Indochina.
Step-by-step explanation:
Before declaring its independence, Vietnam was a French colony named Indochina. When World War II broke out, Nazi Germany took control of France, and Indochina was invaded by the Japanese. Following Japan's loss against the Allies in 1945, France intended to reclaim the now government-less Indochina, but they were rejected and later humiliated in battle by the national Viet Minh forces in 1954, which reinforced Vietnam's independence. Nonetheless, this divided the country in two: a communist North Vietnam (led by Minh), and a capitalist South Vietnam (led by Diem), which ultimately caused a Civil War that was worsened when the United States entered the war.