A Danish F-16 jet fighter takes off from the NATO air base in Sigonella, Italy, on Wednesday, March 23, 2011. NATO warships began patrolling off Libya's coast on Wednesday to enforce the U.N. arms embargo as the alliance appeared set to assume responsibility for maintaining the no-fly zone over the country, officials said. (AP Photo/Andrew Medichini)

Photo by: Andrew Medichini

A Danish F-16 jet fighter takes off from the NATO air base in Sigonella, Italy, on Wednesday, March 23, 2011. NATO warships began patrolling off Libya's coast on Wednesday to enforce the U.N. arms embargo as the alliance appeared set to assume responsibility for maintaining the no-fly zone over the country, officials said. (AP Photo/Andrew Medichini)