The city of Hiroshima stands on a flat river delta on the Japanese mainland, Honshu. By 1950, an estimated 340,000 people had died as a result of the two bombs. Hundreds of thousands of people died, many instantaneously, others soon after from burns and shock, and yet more from the impact of radiation in the months and years that followed. In 1945, the United States Air Force dropped atomic bombs on the Japanese cities of Hiroshima and Nagasaki with tragic and devastating consequences.