It's easy to make these comments 70 years after the war and we are no longer fighting a world war (we are fighting numerous little wars). If Japan had not attacked us and Germany had not declared war on us, we would not have dropped the bombs on Hiroshima and Nagasaki, we probably would not have even developed the bombs in the first place. The Japanese leadership were not ready to surrender unconditionally, they wanted to surrender on their own terms. The Japanese did not easily surrender at Okinawa, they fought fanatically to the death and even civilians committed suicide rather than be taken prisoner.
Wikipedia: Okinawa was the bloodiest battle of the Pacific War. The most complete tally of deaths during the Battle are at the Cornerstone of Peace monument at the Okinawa Prefecture Peace Park identifies the names of each individual who died at Okinawa due to World War II. As of 2010, the monument lists 240,931 names, including 149,193 Okinawan civilians, 77,166 Imperial Japanese soldiers, 14,009 U.S. soldiers
The Japanese leadership were responsible for those bombs being dropped on those 2 cities. They could have surrendered unconditionally and the bombs would not have been dropped. The Chinese and the Koreans were not sad to see those bombs dropped; one Korean woman said that she wished that the US had dropped more A-bombs on Japan. We were at war, a far flung world war fighting two fanatical, merciless militaristic enemies. Thousands of Americans had died in the Pacific theater and we're not supposed to use the weapon that can end the war with a minimum loss of US life? The Japanese leadership should have done the apologizing, not just the US. Have the Japanese apologized for the massacres and atrocities they committed all over Asia? Rape of Nanking? I wish we would ban all nuclear weapons, dismantle them and phase out nuclear power while we are at it. The US should apologize for many things, the list is long, but both the Japanese and the US should issue a joint apology for the dropping of the A-bombs because the Japanese do share in the guilt for starting the war and for not surrendering in a timely fashion.