The U.S. is spending 2 million a day in sorties and 60 million a month in refueling. Second, NATO is run by the U.S. - we are the prime power, we put the backing behind it and we push the agenda and lead it. NATO= the U.S. To say that the U.S. has ended it's involvement is just false:
From 7/17/2011 article here: Britain urges US to step up Libya support - FT.comOriginally Posted by Financial Times
Wondering though, much harder to do what? It was my understanding that NATO(e.g., the U.S.) is there to kill Gaddafi.