On 10–11 April 1994, UNPROFOR called in air strikes to protect the Goražde safe area, resulting in the bombing of a Serbian military command outpost near Goražde by two US F-16 jets. This was the first time in NATO's history it had conducted air strikes. In retaliation, Serbs took 150 U.N. personnel hostage on 14 April. On 15 April the Bosnian government lines around Goražde broke, and on 16 April a British Sea Harrier was shot down over Goražde by Serb forces.