The city famously bombed during World War II on August 6, 1945, was Hiroshima. The U.S. dropped an atomic bomb known as "Little Boy" on Hiroshima, resulting in catastrophic destruction and unprecedented civilian casualties. The bombing marked the first use of nuclear weapons in warfare, leading to an estimated 140,000 immediate deaths and long-term effects from radiation exposure. The bombing was intended to hasten Japan's surrender and end the war, but it also raised ethical questions regarding the use of such weapons. The attack on Hiroshima, followed by the bombing of Nagasaki days later, forever changed warfare and international relations in the post-war world.