Answer:

second World war was the most destructive conflict in history. It cost more money, damaged more property, killed more people and caused more far reaching changes than first world war.

Explanation:

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Answer: World War II was the most destructive conflict in history. It cost more money, damaged more property, killed more people, and caused more far-reaching changes than any other war in history. It is estimated that 1.5 million children died during the Holocaust.