Hiroshima is marking the 80th anniversary of the U.S. atomic bombing of the western Japanese city. Many aging survivors express frustration over growing global support for nuclear weapons as deterrence.

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

Pope Leo on Wednesday criticised the "illusory security" of the global nuclear deterrence system, in an appeal on the 80th anniversary of the United States dropping an atomic bomb on the Japanese city of Hiroshima at the end of the Second World War.