The 81R, codenamed Starfish, was an anti-submarine missile used by the Soviet Union during the Cold War. It had a short range and was unguided, but was loaded with an active nuclear warhead. NATO reporting names were code names for Soviet and Chinese military equipment. ... For other uses, see Cold War (disambiguation). ... The mushroom cloud of the atomic bombing of Nagasaki, Japan, in 1945 lifted nuclear fallout some 18 km (60,000 feet) above the epicenter. ...