text: why us government use nuclear weapon on the wwii ? i mean is hiroshima and nakazaki. they thought it was save thousands of us soldiers and japanese people if we had to carpet bomb japan and invade it. i don't know why they dropped two though. truman rationalized it's dropping by saying they were dropped on "purely military targets" which is not the truth, nor is that it would save innocent japanese lives.  i am not sure it saved that many innocent people as almost half a million people died in the attacks and there were no significant military in either city where the bombs were dropped, contrary to what truman thought.  in nagasaki alone almost 1/4 million people were wiped from the face of the earth, so truman's innocent people theory was bogus.  it did bring to end the war within a few days. the united nations  was born within 4 months of the bombing.  and atom bombs are nuclear. if they weren't why did thousands die of exposure to radiation? they certainly are not conventional weapons. the bombs were dropped within 3 days of each other and people couldn't watch 230.000 innocent men, women and children die from their living room television as they could watch the "war" iraq from media moles planted with combat units.  it also began the nuclear age which is exactly what the government was warned about and petitionrd by the scientist that developed it. they wanted to use it for peaceful purposes, not to kill a half million people and begin an arms race.