The 509th Composite Group (509th CG) was a United States Army Air Forces unit created during World War II, and tasked with operational deployment of nuclear weapons. It conducted the atomic bombings of Hiroshima and Nagasaki, Japan, in August 1945. Thanks to the eNotes.com Reference for the information. Basic shipping included to most countries, allow 4+ weeks before arrival. Additional costs may incur for EURO, South America and African countries.