Spc. Anthony D. Nicastro, a M1A2 Abrams Main Battle Tank gunner assigned to Company D, 2nd Battalion, 7th Infantry Regiment, 1st Armored Brigade Combat Team, 3rd Infantry Division, reviews the maintenance check list for his assigned tank May 21, 2015 at the Bucierz Range Complex near Camp Konotop, Poland, while supporting Operation Atlantic Resolve, an ongoing multinational partnership focused on joint training and security cooperation between NATO allies. (U.S. Army photo by Sgt. Brandon Anderson, 13th Public Affairs Detachment .)