In March 2011, the 31st played a major role in the United Nations' response to the crisis in Libya, known as Operation Odyssey Dawn, in enforcing a no-fly zone over Libya. The wing hosted four flying units and more than 1,350 personnel during the 15-day operation, 17–31 March. It worked around the clock to launch 2,250 flying operations out of Aviano. As the operation came to an end on 31 March, so began Operation Unified Protector, with NATO taking the lead until the operation's conclusion 31 Oct of that year.