DON COOKE

In early 1942, while the American military was still in disarray from the devastating attacks on Pearl Harbor and the Philippines, a single US Army squadron advanced to the far side of the world to face America's new enemy. Based in Australia with inadequate supplies and no ground support, the squadron's pilots and combat crew endured tropical diseases while confronting numerically superior Japanese forces. Yet the outfit, dubbed the Kangaroo Squadron, proved remarkably resilient and successful.

At 24 years of age, U.S. Army Ranger Sean Parnell was named commander of a forty-man elite infantry platoon - a unit that came to be known as the Outlaws - and was tasked with rooting out Pakistan-based insurgents from a mountain valley along Afghanistan's eastern frontier. Parnell and his men assumed they would be facing a ragtag bunch of civilians, but in May 2006 what started out as a routine patrol through the lower mountains of the Hindu Kush became a brutal ambush.