U.S. Army Sgt. Nathan Graham, 307th Brigade Support

U.S. Army Sgt. Nathan Graham, 307th Brigade Support Battalion, 1st Brigade, Bravo Company vehicle mechanic and Afghanistan National Army Soldiers, work on the engine of a HUMVEE during an Expeditionary Advisory Package visit at Forward Operating Base Pasab, Afghanistan, Nov. 7, 2017. Members from Train, Assist, Advise Command-South met with their Afghanistan counterparts to train, assist and advise them on how they currently operate, ways to make things better and knowledge to sustain. (U.S. Air Force photo by Staff Sgt. Sean Martin)