German surrender brought the Second World War in Europe to an end.

German surrender brought the Second World War in Europe to an end.

By the end of the 1950s, public opinion about the bomb had started to shift.

By the end of the 1950s, public opinion about the bomb had started to shift.

By the 1970s the Cold War tensions were beginning to thaw, as people grew less worried about nuclear catastrophe than about the Vietnam War.

By the 1970s the Cold War tensions were beginning to thaw, as people grew less worried about nuclear catastrophe than about the Vietnam War.

By the 1980s the Soviet Union had spent decades pouring money into weapons and foreign wars.

By the 1980s the Soviet Union had spent decades pouring money into weapons and foreign wars.