Goff's career as an NCO in the Special Forces (Delta Force, US Rangers, Special Ops) took him from the invasions of Panama, Grenada and Haiti, to the training grounds of the Colombian Army (ostensibly in drug interdiction), to a semester as a West Point lecturer, to Mogadishu at the time of the operation immortalized in Black Hawk Down. Unlike the typical soldier's memoir, Goff does not in machismo or heart-searching. He draws lessons from his past,...