The Vietnam War took place.
The Gulf of Tonkin incident ( Sự kiện Vịnh Bắc Bộ ) , also known as the USS Maddox incident , drew the United States more directly into the Vietnam War . The Paris Peace Accords , officially titled the Agreement on Ending the War and Restoring Peace in Vietnam , was a peace treaty signed on January 27 , 1973 to establish peace in Vietnam and end the Vietnam War . The role of the United States in the Vietnam War began after World War II and escalated into full commitment during the Vietnam War from 1955 to 1975 . Vietnam War . Despite the Paris Peace Accord , which was signed by all parties in January 1973 , the fighting continued .