The air traffic control tower and 4100th Group Provisional equipment, some is under camouflage netting, located at Tuzla Air Base, Bosnia-Herzegovina. The 4100th Group Provisional is in Bosnia in support of forces involved in Operation Joint Endeavor, which is a peacekeeping effort by a multinational Implementation Force (IFOR), comprised of NATO and non-NATO military forces, deployed to Bosnia in support of the Dayton Peace Accords