What lasting contribution did President Nixon make in easing global tensions during the Vietnam war?

President Nixon's lasting contribution to easing global tensions during the Vietnam War was his policy of détente, which aimed to reduce hostilities between the United States and major communist powers, particularly the Soviet Union and China. His historic visit to China in 1972 opened diplomatic relations and shifted the dynamics of the Cold War, fostering a more cooperative global environment. Additionally, the strategic arms limitation talks (SALT) initiated during his administration helped to curb the nuclear arms race, contributing to a reduction in global tensions. These actions laid the groundwork for future diplomatic engagements and a more stable international landscape.