Centuries-old empires crumbled as new ideologies – from communism to fascism – took root in many parts of the world. Wars in the early part of the 20th century led to the end of the colonial world and gave birth to new nations. These wars also cost millions of lives and trillions of dollars. These are the most expensive wars in U.S. history.
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Centuries-old empires crumbled as new ideologies – from communism to fascism – took root in many parts of the world. Wars in the early part of the 20th century led to the end of the colonial world and gave birth to new nations. These wars also cost millions of lives and trillions of dollars. These are the most expensive wars in U.S. history.