BAE Systems will provide identification-friend-or-foe (IFF) systems for U.S. Air National Guard F-16 Fighting Falcons under a four-year contract with the first delivery order valued at $17.2 million. The company will provide 90 AN/APX-113(V) combined interrogator-transponders, versatile IFF systems developed specifically for the F-16. The system generates and responds to interrogations to positively establish the identity of friendly forces, reducing the risk of friendly fire. The Air National Guard will use the IFF systems for U.S. air defense, as well as to assist the U.S. Air Force in its mission that includes tactical airlift support, combat communications, aerial refueling, and evacuation of wounded. The work will be performed in Greenlawn, NY, and is expected to be completed by 2013.