In a U.S. friendly fire incident during Operation Provide Comfort in northern Iraq, two United States Air Force aircraft mistakenly shoot-down two United States Army helicopters, killing 26 people.

The 1994 Black Hawk shootdown incident, sometimes referred to as the Black Hawk Incident, was a friendly fire incident over northern Iraq that occurred on 14 April 1994 during Operation Provide Comfort (OPC). The pilots of two United States Air Force (USAF) F-15 fighter aircraft, operating under the control of a USAF airborne warning and control system (AWACS) aircraft, misidentified two United States Army UH-60 Black Hawk helicopters as Iraqi Mil Mi-24 "Hind" helicopters. The F-15 pilots fired on and destroyed both helicopters, killing all 26 military and civilians aboard, including personnel from the United States, United Kingdom, France, Turkey, and the Kurdish community.

A subsequent USAF investigation blamed the accident on several factors. The F-15 pilots were faulted for misidentifying the helicopters as hostile. Also, the crew members of the AWACS aircraft were blamed for their inaction in failing to exercise appropriate control and for not intervening in the situation. In addition, the identification friend or foe (IFF) systems had not functioned to identify the helicopters to the F-15 pilots. Furthermore, USAF leaders had failed to adequately integrate U.S. Army helicopter operations into overall OPC air operations. As a result of the investigation several USAF officers received administrative discipline but only one, Jim Wang, an AWACS crew member, was tried by court-martial, in which he was acquitted.

As a result of complaints by family members of the victims and others that the military was failing to hold its personnel accountable, the U.S. Senate and U.S. House conducted their own investigations into the shootdown and the U.S. military's response to it. Also, Ronald R. Fogleman, the USAF's new Chief of Staff, conducted his own review of the actions taken by the USAF against the officers involved in the incident.

Fogleman's investigation led to several of the officers involved in the incident receiving further administrative discipline. The U.S. Department of Defense (DoD) subsequently refused U.S. Senate subpoenas for four USAF officers to be interviewed for the Senate investigation, which was never publicly released. The U.S. House investigation, conducted in part by the Government Accountability Office (GAO), found that the military investigative and judicial systems had operated mostly as designed, but also noted that the DoD had refused access to key witnesses.

In military terminology, friendly fire or fratricide is an attack by belligerent or neutral forces on friendly troops while attempting to attack enemy/hostile targets. Examples include misidentifying the target as hostile, cross-fire while engaging an enemy, long range ranging errors or inaccuracy. Accidental fire not intended to attack enemy/hostile targets, and deliberate firing on one's own troops for disciplinary reasons, is not called friendly fire, and neither is unintentional harm to civilian or neutral targets, which is sometimes referred to as collateral damage. Training accidents and bloodless incidents also do not qualify as friendly fire in terms of casualty reporting.Use of the term "friendly" in a military context for allied personnel started during the First World War, often when shells fell short of the targeted enemy. The term friendly fire was originally adopted by the United States military; S.L.A. Marshall used the term in Men Against Fire in 1947. Many North Atlantic Treaty Organization (NATO) militaries refer to these incidents as blue on blue, which derives from military exercises where NATO forces were identified by blue pennants and units representing Warsaw Pact forces by red pennants. In classical forms of warfare where hand-to-hand combat dominated, death from a "friendly" was rare, but in industrialized warfare, deaths from friendly fire are common.