Army Spc. Matthew Shelton, a gunner, and Army Spc. Philip Roberts, a driver, both assigned to Charlie Company, 2nd Battalion, 7th Cavalry Regiment, 3rd Armored Brigade Combat Team, 1st Cavalry Division, install the gun tube after tightening the bore evacuator on an M1A2 Abrams Main Battle Tank while conducting maintenance during Exercise Bright Star 2017 at Mohamed Naguib Military Base, Egypt, Sept. 10, 2017. The exercise provides an opportunity to build partnership and mutual cooperation in the fight against terrorism in the region. Army photo by Staff Sgt. Leah R. Kilpatrick