Air Force Col. Clair Gilk, 316th Operations Group commander, greets Russian President Dmitry Medvedev at Andrews Air Force Base, Md., Nov. 14, 2008. The Russian president was in Washington attending the two-day G20 Summit at the White House. The summit, hosted by U.S. President George W. Bush, brought together world leaders to discuss the increasing global financial crisis, its causes and efforts to resolve it. (U.S. Air Force photo by Airman 1st Class Melissa V. Rodrigues)