After nine years of negotiations, the United States, the Soviet Union, and other countries signed the Limited Nuclear Test Ban Treaty (LTBT) in 1963, which prohibited “any nuclear weapon test explosion, or any other nuclear explosion” “in the atmosphere; beyond its limits, including outer space; or under water, including waters or high seas.”^[i] This treaty, in part, resulted from the

The Reykjavík Summit, held on October 11 and 12, 1986, was the second meeting of US President Ronald Reagan and Soviet General Secretary Mikhail Gorbachev. Following up on the previous year’s Geneva Summit, Reagan and Gorbachev continued to work toward and debate the possible terms of nuclear arms reduction at Reykjavík. The two leaders did not reach an agreement at Reykjavík, though many diplomats and experts consider the summit a turning point in the Cold War.

The Geneva Summit, the first meeting between U.S. President Ronald Reagan and Soviet General Secretary Mikhail Gorbachev, was held on November 19 and 20, 1985. The two leaders met to discuss the Cold War-era arms race, primarily the possibility of reducing the number of nuclear weapons. Hosted in Geneva, Switzerland, the meeting was the first American-Soviet summit in more than six years.