One of two Japanese cities on which an atomic bomb was dropped by the USA to end World War II. 140,000 Japanese civilians were killed, but one must also consider the many more civilians that would have died had the US commenced a land invasion of Japan and not all would have had as quick a death. This action was simply the lesser of two evils for both nations.
Next time a weaboo complains about Hiroshima and Nagasaki, just reference the 15+ MILLION Chinese civilians that died during the Japanese invasion and occupation of China. Not to mention countless other atrocities which the Japanese continue to deny or equivocate to this day.