Observed every year on 9 August

On 9 August 1945, the United States dropped an atomic bomb named “Fat Man” on Nagasaki, Japan.

This day is observed to promote peace and awareness about the dangers of nuclear weapons.

• Significance:
  • Second nuclear bomb in history (after Hiroshima)
  • Led to Japan’s surrender and end of World War II
  • Promotes nuclear disarmament and peace