On May 1, 2011, President Obama and his national security team gathered in the White House Situation Room to watch a commando raid taking place half a world away. As the mission unfolded, the President was in continuous video contact with the senior military officer directing the operation from a base in Afghanistan, Admiral William McRaven. To this task, Admiral McRaven brought three decades of experience in special operations. The first officer to graduate from the Special Operations and Limited Warfare program at the Naval Postgraduate School, he has held commands at every level...