U.S. defense strategy from Washington to Trump

The U.S. has always told the world it is a protector of peace — even if that meant through violence. Michael O’Hanlon, Philip H. Knight Chair in Defense and Strategy at the Brookings Institution, joins guest host John McCaa to discuss the evolution of how the nation approaches defense – from fledgling republic to global superpower. His book is “To Dare Mighty Things: U.S. Defense Strategy Since the Revolution.”