US Army (USA) 1ST Battalion (BN), 4th Air Defense Artillery (1/4th ADA), 1ST Armored Division (AD), Soldiers are on duty at Check Point 65 (CP 65), which is located on the Kosovo side of the 5-kilometer Ground Safety Zone (GSZ) separating Kosovo from the Federal Republic of Yugoslavia (FRY), along with USA 16th Engineer BN, 1ST AD, personnel as part of Task Force (TF) Falcon. TF Falcon is the designation for the US European Command (USEUCOM) forces assigned to the NATO (North Atlantic Treaty Organization) led peacekeeping Kosovo Force (KFOR) during Operation JOINT GUARDIAN