The US dropped atomic bombs on Hiroshima on August 6, 1945 and Nagasaki on August 9, 1945, in an effort to force Japan to surrender and end World War II. The bomb dropped on Hiroshima, named "Little Boy", destroyed over half the city and killed around 70,000 people instantly. In Nagasaki, the "Fat Man" bomb exploded 1,800 feet above the city, leveling buildings and killing approximately 42,000 people while injuring 40,000 more. The bombings marked the first and only use of nuclear weapons in war and resulted in hundreds of thousands of injuries and long term deaths from radiation exposure across both cities.