A U.S. Marine MV-22 Osprey with Marine Medium Tiltrotor Squadron 261 lands carrying Marines during a clear, hold and build exercise at Quackenbush Training Area on Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., July 19, 2009. A U.S. Marine MV-22 Osprey with Marine Medium Tiltrotor Squadron 261 lands carrying Marines during a clear, hold and build exercise at Quackenbush Training Area on Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., July 19, 2009. SHARE: Download: Full Size (5.72 MB) Tags: Photo Essays Credit: VIRIN: 201752-X-DTE16-023.jpg Photo Gallery