- $3.7 trillion cost for the United States’ post-9/11 wars source
- ยป The wages of war: When President Obama referred to a $1 trillion price tag for America’s wars in the last decade, he clearly hadn’t spoken to the folks running the Costs of War project at Brown University’s Watson Institute. The project determined the above figure through calculations that included future costs, such as health services for wounded veterans returning home, as well as counting what’s generally referred to as our “secret” war in Pakistan.