When did Vietnam become a republic?

Answer 1

Vietnam declared its independence from France in 1945. France, however, reoccupied the country after the Japanese surrender, and thus Vietnam remained a de facto French colony until the French were defeated at Dien Bien Phu and in the Red River delta at the hands of the Viet Minh in 1954. At the 1954 Korea and Indo-China peace conference in Geneva, the Western powers, the USSR, China and other nations agreed that Vietnam should be partitioned at the 17th parallel into what became a Western-oriented South Vietnam and a Soviet-bloc-oriented North Vietnam. Both parts were supposed to be reunited after countrywide elections scheduled for 1956. These elections never took place. Vietnam was finally reunited as a single country after Vietcong and No. Vietnamese forces overran South Vietnam in 1975 after two decades of civil war with American intervention. Vietnam considers its date of independence to be 1945.

Answer 2

in 1975