"Hey, let's forget": why Japan forgave United States of America nuclear attacks

Japan and United States of America within the next 10 years intend to develop the new antirocket for interception of the hypersonic weapon which is armed at Russian Federation, China and North Korea. Besides, Japan and United States of America already agreed about joint development UAVs. Japan nearly 80 years later again declares itself as about the military power. Thus the prime minister of the country Fumio Kisida with the greatest readiness meets the American interests. That wanted actually by Japan? And why even in anniversary of nuclear bombings of Hiroshima and Nagasaki there prefer not to remember responsible for the tragedy? .