In a <a href="https://en.wikipedia.org/wiki/Friendly_fire" id="mwAUg" rel="mw:WikiLink" title="Friendly fire">friendly fire</a> incident during <a href="https://en.wikipedia.org/wiki/Operation_Provide_Comfort" id="mwAUk" rel="mw:WikiLink" title="Operation Provide Comfort">Operation Provide Comfort</a> in northern <a href="https://en.wikipedia.org/wiki/Iraq" id="mwAUo" rel="mw:WikiLink" title="Iraq">Iraq</a>, two <a href="https://en.wikipedia.org/wiki/United_States_Air_Force" id="mwAUs" rel="mw:WikiLink" title="United States Air Force">U.S. Air Force</a> aircraft mistakenly <a href="https://en.wikipedia.org/wiki/1994_Black_Hawk_shootdown_incident" id="mwAUw" rel="mw:WikiLink" title="1994 Black Hawk shootdown incident">shoot-down</a> two <a href="https://en.wikipedia.org/wiki/United_States_Army" id="mwAU0" rel="mw:WikiLink" title="United States Army">U.S. Army</a> helicopters, killing 26 people.