On 17 March 2011., the UN Security council adopted the United Nations Security Council resolution 1973 which legitimised the military operation against the pro-Gadaffi regime - with 10 votes in favour, 0 against and 5 abstentions, a no-fly zone was established over the whole of Libya with the United Nations Security Council resolution 1973. Despite that, both pro-Gadaffi and pro-rebel air forces continued their sorties for the next two days, launching multiple airstrikes up until the night of 19 March, when a no-fly zone was finally implemented by NATO forces, grounding both rebel and pro-Gadaffi fighter jets from then on. In the late afternoon of 19 March, first coalition airstrikes were launched against the Gadaffi regime, with French fighter jets bombing pro-Gadaffi tank columns at the entrance to Benghazi, stopping their offensive against rebel forces in Benghazi. US and British warships then launched more than 120 Tomahawk cruise missiles against Jamahiriya air defences and four US B-2 stealth bombers attacked and destroyed several Jamahiriya airfields during the night of 19 March, with more airstrikes and cruise missile strikes being launched against the pro-Gadaffi regime during the next several days, destroying the combat capabilities of pro-Gadaffi Libyan air force and anti-air defences.