 The F-16 is being used by the active duty USAF, Air Force Reserve, and Air National Guard units, the USAF aerial demonstration team, the U.S. Air Force Thunderbirds, and as an adversary-aggressor aircraft by the United States Navy at the Naval Strike and Air Warfare Center.The U.S. Air Force, including the Air Force Reserve and the Air National Guard, flew the F-16 in combat during Operation Desert Storm in 1991 and in the Balkans later in the 1990s.F-16s also patrolled the no-fly zones in Iraq during Operations Northern Watch and Southern Watch and served during the wars in Afghanistan (Operation Enduring Freedom) and Iraq (Operation Iraqi Freedom) from 2001 and 2003 respectively.