ປ. ໂອບາມາ ຈະໄປຢ້ຽມ ຮິໂຣຊິມະ

Doves fly over Peace Memorial Park with Atomic Bomb Dome in the background, at a ceremony in Hiroshima, August 6, 2015.

U.S. Secretary of State John Kerry (2nd L) prepares to lay a wreath at the cenotaph with Japan's Foreign Minister Fumio Kishida (L), Britain's Foreign Minister Philip Hammond and other fellow G7 foreign ministers at Hiroshima Peace Memorial Park and Museum in Hiroshima, in this photo released by Kyodo April 11, 2016.

A woman prays for the victims of the 1945 atomic bombing, in the Peace Memorial Park in Hiroshima, in this photo taken by Kyodo, August 6, 2014.

In this Aug. 6, 1945 photo released by the U.S. Army, a mushroom cloud billows about one hour after a nuclear bomb was detonated above Hiroshima.

In this Aug. 6, 1945 file photo, the "Enola Gay" Boeing B-29 Superfortress lands at Tinian, Northern Mariana Islands after the U.S. atomic bombing mission against the Japanese city of Hiroshima.

An Allied war correspondent stands amid the ruins of Hiroshima, Japan in 1945, just weeks after the city was leveled by an atomic bomb.

This general view of the city of Hiroshima showing damage wrought by the atomic bomb was taken March 1946, six months after the bomb was dropped August 6, 1945.

Japanese victims wait to receive first aid in the southern part of Hiroshima, Japan, a few hours after the U.S. atomic bomb exploded in the heart of the city on Aug. 6, 1945. The explosion of the first A-bomb, known as "Little Boy," instantly killed 66,00

Picture dated 1948 showing children wearing masks to protect themselves from irradiation in the devastated city of Hiroshima after the US nuclear bombing on August 6, 1945.

A boy looks at a huge photograph showing Hiroshima city after the 1945 atomic bombing, at the Hiroshima Peace Memorial Museum, Japan, August 6, 2007.

A student participates in a peace rally to commemorate the 68th anniversary of the atomic bombings of the Japanese cities of Hiroshima and Nagasaki, in Mumbai, August 6, 2013.

People release paper lanterns on the Motoyasu river facing the gutted Atomic Bomb Dome in remembrance of atomic bomb victims on the 69th anniversary of the bombing of Hiroshima,  August 6, 2014.