Which armed conflict ended with the Paris Peace Accords?

The Paris Peace Accords, officially titled the Agreement on Ending the War and Restoring Peace in Viet Nam, was a peace treaty signed on January 27, 1973, to establish peace in Vietnam and end the Vietnam War.

The treaty included the governments of the Democratic Republic of Vietnam (North Vietnam), the Republic of Vietnam (South Vietnam), and the United States, as well as the Republic of South Vietnam (PRG) that represented South Vietnamese communists.

The Paris Agreement Treaty would in effect remove all remaining US Forces, including air and naval forces in exchange. Direct U.S. military intervention was ended, and fighting between the three remaining powers temporarily stopped for less than a day.

The Paris Peace Accords effectively removed the U.S. from the conflict in Vietnam. Prisoners from both sides were exchanged, with American ones primarily released during Operation Homecoming. Around 31,961 North Vietnamese/VC prisoners (26,880 military, 5081 civilians) were released in return for 5942 South Vietnamese prisoners.

According to Finnish historian Jussi Hanhimäki, due to triangular diplomacy which isolated it, South Vietnam was "pressurized into accepting an agreement that virtually ensured its collapse".