As Japan marks 80 years since the atomic bombings of Hiroshima and Nagasaki, the country's postwar identity is shifting.

Thousands of people have gathered in Hiroshima to commemorate the 80th anniversary of the world’s first wartime use of a nuclear bomb – as survivors, officials and representatives from 120 countries and territories marked the milestone with renewed calls for disarmament.

Many aging Hiroshima survivors express frustration over growing global support for nuclear weapons as deterrence.