It's been 75 years since America dropped the world's first atomic bomb on Hiroshima. For survivors, the war isn't over yet. Discarded N-treaties, faster missiles, cyber-attacks, and artificial intelligence - the new nuclear threats are greater than before. WION's Palki Sharma tells you why the world isn't any wiser.

Gravitas: 75 Years After Hiroshima | Will new tech raise the threat of nuke war?

Prime Minister Shinzo Abe, in his speech at the ceremony, said Japan is committed to nuclear weapons ban but said a nuclear-free world could not be achieved overnight and that it has to start from dialogue between opposite sides.

Japan: 75 years since first atomic bombing | Hiroshima Bombing Anniversary | Shinzo Abe

Japan marks 75th anniversary of Hiroshima atomic bombing | World War 2 | WION | World News