Arleigh Burke-class guided-missile destroyer USS Barry launches a Tomahawk missile in support of Operation Odyssey Dawn on March 19, 2011. This was one of approximately 110 cruise missiles fired from U.S. and British ships and submarines that targeted about 20 radar and anti-aircraft sites along Libya’s Mediterranean coast. Joint Task Force Odyssey Dawn is the U.S. Africa Command task force established to provide operational and tactical command and control of U.S. military forces supporting the international response to the unrest in Libya and enforcement of United Nations Security Council Resolution 1973. UNSCR 1973 authorizes “all necessary measures” to protect civilians in Libya under threat of attack by Qadhafi regime forces. JTF Odyssey Dawn is commanded by U.S. Navy Admiral Samuel J. Locklear III.