Hiroshima day is observed on August 6 every year to promote peace politics. It is the day when in 1945 an atomic bomb was dropped in the city of Hiroshima, Japan. The bomb was equivalent to the power of 12-15,000 tons of TNT and known as Little Boy. American bomber Enola Gay dropped an atomic bomb on the Japanese city of Hiroshima on August 6, 1945. . It reduced four square miles of the city to ruins killing almost 80,000 people and injuring about 35,000. After three days another atomic bomb was dropped in Nagasaki, Japan. This bombing ended Second World War. The annual event is organized by the Galway Alliance Against War in Eyre Square. It marks the anniversary of the atomic bombing of Hiroshima and Nagasaki by the United States in 1945. To promote "peace politics" the Galway Alliance Against War holds the event every year with various programs like music, song, dance, etc.