Army Tactical Communications System
Acquisition Tracking and Control Syste…
Amphibious Tactical Air Control System
Advanced Tactical Air Control System
Advanced Tank Cannon System
Advanced Target Acquisition Counterfir…
Advanced Target Aquisition Counter-fir…
Analyst-to-Analyst Communications Serv…
Antithrombotic Therapy in Acute Corona…
Army Tactical Air Control System
Army Tactical Area Communications Syst…
Automated Test and Administration Cont…