Two A-10 Thunderbolt IIs flown by Lt. Col. Michael Millen and Col. John Cherrey taxi down the runway after completing 10,000 hours of flying during a six-month deployment Jan. 1, 2010, at Kandahar Airfield, Afghanistan. Colonel Millen is the 354th Expeditionary Fighter Squadron commander, and Colonel Cherrey is the 451st Expeditionary Operations Group commander. (U.S. Air Force photo/Staff Sgt. Dayton Mitchell)