On August 6, 1945, the Enola Gay, a B-29 U.S. Air Force military plane, dropped an atomic bomb code-named “Little Boy” on the Japanese city of Hiroshima. As the skies raged, silhouettes of men, women, and children were plastered onto building bricks. The casualties were immense: around 70,000 Japanese citizens perished. Three days later, Bockscar, another U.S. Air Force B-29 airplane, dropped the second atomic bomb on the city of Nagasaki, killing 40,000 Japanese citizens.