The Association of the U.S. Army’s annual conference in Washington is less of a service branch confab than it is a show-and-tell for the global defense industry: an exposition of gear and vehicles, gun and tanks, that are shaping the future of land warfare. But while Bell Helicopter’s V-280 Valor tiltrotor prototype and a wildly rotating THAAD-style missile launcher dominated the convention center space on Oct. 9, one class of vehicle stood out as the most exciting among rank-and-file soldiers: General Dynamics Land Systems’ brand new Stryker armored fighting vehicles.