On 19 November 1994, the North Atlantic Council approved the extension of Close Air Support to Croatia for the protection of UN forces in that country. NATO aircraft attacked the Udbina airfield in Serb-held Croatia on 21 November, in response to attacks launched from that airfield against targets in the Bihac area of Bosnia and Herzegovina. On 23 November, after attacks launched from a surface-to-air missile site south of Otoka (north-west Bosnia and Herzegovina) on two NATO aircraft, air strikes were conducted against air defence radars in that area.