During the 1970s the Cold War experienced a change in pace, as world leaders sought to stabilize international affairs. ‘The rise and fall of superpower detente, 1968–79’ covers detente from its inception during the late 1960s to its abrupt end in 1979. Detente's beginning was the product of a number of factors, including Russo–American missile parity, American failure in the Vietnam War, Sino–American rapprochement and a failing Russian economy. Detente flowered during the early 1970s, with the symbolic signing of the Strategic Arms Limitation Treaty (SALT) and the Helsinki Accords. The era came to an end in 1979 with the Soviet invasion and occupation of Afghanistan.