HIROSHIMA, JAPAN - AUGUST 06: Japan's Prime Minister Shinzo Abe speeches during the ceremony to mark the 70th anniversary of the bombingat the Hiroshima Peace Memorial Park on the day of the 70th anniversary of the atomic bombing of Hiroshima on August 6, 2015 in Hiroshima, Japan. Japan marks the 70th anniversary of the first atomic bomb that was dropped by the United States on Hiroshima on August