Soldiers with Company A and Company E, 1st Battalion, 63rd Armor Regiment, 2nd Advise and Assist Brigade, 1st Infantry Division, United States Division - Center, work together to perform services and checks on the M1A1 Abrams tank to ensure mission readiness July 19, 2011 at Camp Liberty, Iraq. The checks and services are the building blocks of successful missions, said Capt. Alex Hunter, commander of Company E, 1st Bn., 63rd Armor Regt., and a Lincoln, Neb., native.