Which event directly leg to the end of the vietnam war

Direct U.S. military involvement ended on 15 August 1973 as a result of the Case–Church Amendment passed by the U.S. Congress. The capture of Saigon by the NVA in April 1975 marked the end of the war, and North and South Vietnam were reunified the following year.

b) he seized power from the directory and appointed himself emperor

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