U.S. Marine Staff Sgt. Tim Chambers salutes the Rolling Thunder members as they travel to the Vietnam Veterans Memorial through downtown Washington, D.C., May 30, 2010. Thousands of bikers from across the United States turned out for the annual event that aims to raise awareness for the needs of veterans. U.S. Marine Staff Sgt. Tim Chambers salutes the Rolling Thunder members as they travel to the Vietnam Veterans Memorial through downtown Washington, D.C., May 30, 2010. Thousands of bikers from across the United States turned out for the annual event that aims to raise awareness for the needs of veterans. SHARE: Download: Full Size (1.16 MB) Tags: Photo Essays Credit: VIRIN: 237009-C-ARW17-292.jpg Photo Gallery