Elliot Ackerman is the author of several novels including Dark at the Crossing, which was a finalist for the National Book Award, and most recently Waiting for Eden. His writings appear in Esquire, The New Yorker, The Atlantic, and The New York Times Magazine, among other publications, and his stories have been included in The Best American Short Stories and The Best American Travel Writing. He is both a former White House Fellow and Marine, and served five tours of duty in Iraq and Afghanistan, where he received the Silver Star, the Bronze Star for Valor, and the Purple Heart. He divides his time between New York City and Washington, D.C.

Admiral Jim Stavridis, USN (Ret.), spent more than thirty years in the U.S. Navy, rising to the rank of four-star admiral. He was Supreme Allied Commander at NATO and previously commanded U.S. Southern Command, over-seeing military operations throughout Latin America. At sea, he commanded a Navy destroyer, a destroyer squadron, and an aircraft carrier battle group in combat. He holds a PhD from the Fletcher School of Law and Diplomacy at Tufts University, where he recently served five years as dean. He received fifty medals in the course of his military career, including twenty-eight from foreign nations. He is the author of ten other books, including Sea Power: The History and Geopolitics of the World’s Oceans and Sailing True North: Ten Admirals and the Voyage of Character, and is Chief International Analyst for NBC News and a contributing editor of Time magazine. He is currently the vice chair, global affairs, and managing director of the Carlyle Group and the chair of the board of the Rockefeller Foundation.