Gazelle helicopter
... that it was four years before the British government revealed that a Gazelle helicopter was shot down by friendly fire during the Falklands War?
... that it was four years before the British government revealed that a <b id="mwAnk"><a href="./1982_British_Army_Gazelle_friendly_fire_incident" id="mwAno" rel="mw:WikiLink" title="1982 British Army Gazelle friendly fire incident">Gazelle helicopter</a></b> <i id="mwAns">(example pictured)</i> was shot down by <a href="./Friendly_fire" id="mwAnw" rel="mw:WikiLink" title="Friendly fire">friendly fire</a> during the <a href="./Falklands_War" id="mwAn0" rel="mw:WikiLink" title="Falklands War">Falklands War</a>?