U.S. Air Force C-17 Globemaster III crew members, assigned to the 816th Expeditionary Airlift Squadron, secures a M1A1 Abrams Tank with over 36 chains to the floor of the aircraft prior to an air transport to Afghanistan in support of Operation Enduring Freedom on Nov. 28, 2010. The 816th EAS is currently deployed to an undisclosed location in Southwest Asia.