From left to right: U.S. Air Force AIRMAN 1ST Class Nicholas Willford, a Computer Operator Systems Technician, works with STAFF SGT. Brandon Lambert, NCOIC of Data Systems, to install a firewall to the network, while SENIOR AIRMAN Tobias Salloum, a Network Administrator, installs a Microsoft exchange to the email server, during 31st Communication Squadron's Air Expeditionary Communications Element training here at Aviano Air Base, Italy, on Oct. 25, 2004.(U.S. Air Force PHOTO by STAFF SGT. Lakisha Croley) (RELEASED)