"Maria Greitens provides a brilliant and gallant course of action to help navigate life's roughest waters." Admiral Mike Mullen, seventeenth chairman of the Joint Chiefs of Staff In 2012, Eric Greitens surprisingly heard from a former SEAL comrade, a brother-in-arms he hadn't seen in a decade. Zach Walker had been one of the most excellent of the tough. But ever since he returned home from war to his family in a small logging town, he'd been struggling...