Bikers from all across the country pull into the Pentagon's north parking lot May 24, 2009, to participate in the 22nd Annual Rolling Thunder rally in Washington, D.C., to remind the nation that many American servicemembers who were prisoners of war or missing in action are still unaccounted for. DoD photo by Army Sgt. 1st Class Michael J. Carden Bikers from all across the country pull into the Pentagon's north parking lot May 24, 2009, to participate in the 22nd Annual Rolling Thunder rally in Washington, D.C., to remind the nation that many American servicemembers who were prisoners of war or missing in action are still unaccounted for. DoD photo by Army Sgt. 1st Class Michael J. Carden SHARE: Download: Full Size (2.51 MB) Credit: VIRIN: 732689-Z-YWF47-329.jpg Photo Gallery