Tech. Sgt. Joseph Sievert, air traffic controller for the 821st Support Squadron, watches for inbound aircraft while working the local control position at Thule AB Sept. 30. The aircraft were carrying cargo to resupply Canadian Forces Station Alert and Eureka Research Station to get them through the harsh winter as a part of Operation Boxtop. (U.S. Air Force photo/Tech. Sgt. Jason Brumbaugh)