The number of survivors of the U.S. atomic attacks on Hiroshima and Nagasaki is dwindling 80 years later, but they are increasingly speaking out against nuclear weapons.

The Japanese city, on which America dropped the first atomic bomb near the end of World War II, is commemorating the anniversary as global conflicts fuel nuclear fears.

The United States dropped the world's first atomic bomb on Hiroshima, Japan, on Aug. 6, 1945, during World War II.