For context:

    Between 1965 and 1975, the United States and its allies dropped more than 7.5 million tons of bombs on Vietnam, Laos, and Cambodia—double the amount dropped on Europe and Asia during World War II.

    Pound for pound, it remains the largest aerial bombardment in human history.

Japan's "amazing recovery" wasn't hampered by a legacy of UXB (unexploded bombs) that still kill and cripple children to this day.