On 19 March 2011, a multi-state coalition began a military intervention in Libya, ostensibly to implement United Nations Security Council Resolution 1973. The United Nations Intent and Voting]was to have "an immediate ceasefire in Libya, including an end to the current attacks against civilians, which it said might constitute crimes against humanity" ... "imposing a ban on all flights in the country's airspace – a no-fly zone – and tightened sanctions on the Qadhafi regime and its supporters." The resolution was taken in response to events during the Libyan Civil War, and military operations began, with American and British naval forces firing over 110 Tomahawk cruise missiles, the French Air Force, British Royal Air Force, and Royal Canadian Air Force undertaking sorties across Libya and a naval blockade by Coalition forces. French jets launched air strikes against Libyan Army tanks and vehicles. The Libyan government response to the campaign was totally ineffectual, with Gaddafi's forces not managing to shoot down a single NATO plane despite the country possessing 30 heavy SAM batteries, 17 medium SAM batteries, 55 light SAM batteries (a total of 400-450 launchers, including 130-150 SA-6 launchers and some SA-8 launchers), and 440-600 short-ranged air-defense guns. The official names for the interventions by the coalition members are Opération Harmattan by France; Operation Ellamy by the United Kingdom; Operation Mobile for the Canadian participation and Operation Odyssey Dawn for the United States.