The 393d Bomb Squadron (393 BS) is part of the 509TH Bomb Wing at Whiteman Air Force Base, Missouri. The 393d Bombardment Squadron is the only United States Air Force squadron to carry out a nuclear attack on an enemy in combat. During World War II, its aircraft attacked Hiroshima on 6 August 1945 and Nagasaki , Japan 9 August 1945 with atomic bombs. Thanks to Wikipedia for the information. Basic shipping included to most countries. Additional costs may incur for EURO, South America and African countries.