U.S. Air Force Lt. Col. John Preston, 768th Expeditionary Air Base Squadron commander, welcomes participants to the 9/11 Memorial run at Nigerien Air Base 101, Niamey, Niger, Sept. 11, 2018. U.S., Italian, French, and German military members ran a 5K to honor of the Fire Department of New York firefighters, law enforcement officers, and civilians who lost their lives on Sept. 11, 2001. (U.S. Air Force photo by Tech. Sgt. Rachelle Coleman)