The cost of war is enormous in every sense - but what does that translate to in dollars?

We take a look back at the 5 most expensive wars in U.S. history with price adjusted for inflation.

1. World War II 1941-1945, $4 trillion 

2. War on Terror 2001-Present, $1.6 trillion

3. Vietnam War 1965-1975, $738 billion

4. Korean War 1950-1953 Armistice, $341 billion

5. World War I 1917-1918, $334 billion

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This article was written by a staff member of TheStreet.