" The scale of U.S. military operations is remarkable. The U.S. Department of Defense has (as of a 2014 inventory) 4,855 military facilities, of which 4,154 are in the United States; 114 are in overseas U.S. territories; and 587 are in forty-two foreign countries and foreign territories in all regions of the world.2 Not counted in this list are the secret facilities of the U.S. intelligence agencies. The cost of running these military operations and the wars they support is extraordinary, around $900 billion per year, or 5 percent of U.S. national income, when one adds the budgets of the Pentagon, the intelligence agencies, homeland security, nuclear weapons programs in the Department of Energy, and veterans’ benefits. The $900 billion in annual spending is roughly one-quarter of all federal government outlays. "

― Jeffrey D. Sachs , Building the New American Economy: Smart, Fair, and Sustainable