Course Challenge Army 1st Sgt. Brenden Shannon attempts the over and under obstacle at Joint Base Lewis-McChord, Wash., May 15, 2018. Shannon is assigned to the 7th Infantry Division. Army photo by Sgt. Kyle Larsen SHARE: Download: Full Size (1.03 MB) Credit: Sgt. Kyle Larsen VIRIN: 180515-A-AS262-1162C.JPG Photo Gallery