International communist information bureau established by Stalin in 1947; dissolved by Khrushchev in 1956.

Submarine-launched ballistic missiles armed with multiple warheads; Trident II missiles had a range of more than 4,000 miles and carried 10 to 15 warheads each.

Antiballistic missiles, designed to detect and intercept incoming nuclear missiles.

First manned space flight conducted jointly by the United States and the Soviet Union during the era of detente. On July 17, 1975, the U.S. Apollo spacecraft and Soviet Soyuz vessel docked for two day [..]

Competitive buildup of nuclear weapons between the United States and Soviet Union that began after the Soviets exploded their first atomic weapon on August 29, 1949 -- ending the U.S. nuclear monopoly [..]

Developed in the 1960s, these intercontinental ballistic missiles (ICBMs) were housed in deep underground concrete silos built to withstand a nuclear attack.

First nuclear weapon used in wartime, by the United States on Hiroshima, Japan, on August 6, 1945; an A-bomb explosion is created by the splitting of atomic nuclei and results in a huge release of ene [..]

Strategic U.S. heavy bomber with nuclear capacity, developed in the 1980s; unlike the B-52, the B-1 is capable of flying intercontinental missions without refueling.

Strategic U.S. heavy bomber with nuclear capacity, powered by eight turbojet engines; its range is extended by in-flight refueling. B-52s were the mainstay of U.S. nuclear forces in the 1950s.

Middle Eastern defense pact established in 1955 by Great Britain, Turkey and Iraq; would later include the United States, Iran and Pakistan.