US Air Force MASTER Sergeant Marty Jeffers, CHIEF Network Systems, 603rd Air Control Squadron, Aviano Air Base, Italy, trouble shoots an air picture link for the Combined Air Operation Center. The 603rd is deployed to Bovbjerg, Denmark, in support of the annual TACTICAL FIGHTER WEAPONRY Exercise "TFW" and a NATO AIR MEET. TFW and NATO AIR MEET are multinational exercises designed to practice and improve tactical capabilities in a combine training environment