Has USA ever formally apologized for Hiroshima and Nagasaki?

No and they won't for many reasons. As for all those comments explaining that dropping atomic bombs was necessary to end the war, they are at least a bit exaggerated and fruit of a half century long propaganda.Japanese surrendered following

Was the atomic bombing of Hiroshima and Nagasaki needed?

Definitely, yes.The short answer is that the Japanese government and military were dominated, at the end of World War II, by a strong pro-war faction. This faction cowed pro-peace individuals, and even assassinated pro-peace individuals who spoke out for surrender. Japan was preparing for defense by

Why did the United States drop two atomic bombs on Japan in World War II?

It was the only way to get the Japanese to stop fighting. The people who argue against the use of bombs seem to have no idea of the circumstances of their use and no idea of what the alternatives were. Apparently, people who take

Why didn't the Japanese develop a deep-seated hatred against Americans after the atomic bombings of Hiroshima and Nagasaki? How are they friends and allies of America after all of this?

This is a more personal take. My Japanese mother is in her late 80's now and lived through WWII as a young woman. She used to tell us bits and pieces of her experiences when we were growing up. Her village/school was bombed relentlessly, and she lost school friends. She'd talk about the B-29s coming as

Why didn't the US warn Japan before the atomic bombings of Hiroshima and Nagasaki?

All cities subject to bombing of any kind had leaflets dropped on them beforehand warning the citizens to evacuate. There were the-leaflets-dropped-before-the-Hiroshima-atomic-bomb, and there were the Truman-leaflets/ dropped around August 6 warning about the atomic bomb. In other leaflets, America-warned-Hiroshima-and-Nagasaki-citizens/ to leave their