"The truth is that national security and economic strength are inextricably linked, and Washington needs to pursue both," write Michèle Flournoy and Richard Fontaine. "In siloed government agencies, though, they are too often considered in isolation. America’s economy is the foundation of its military and political power, and boosting growth helps relieve the downward pressure on defense and foreign-affairs budgets that reduces Washington’s ability to shape international events. With the world aflame from Syria to Ukraine, and tensions with China rising, the demand for U.S. power is higher than it has been in decades. The challenge today is supplying it."