CNN Wire Staff
Tripoli, Libya (CNN) - NATO has agreed in principle to take the lead in protecting Libyan civilians and will work out details this weekend, said the top commander of a U.S. mission that already is enforcing a no-fly zone in the war-torn country.
Gen. Carter Ham, commander of U.S. Africa Command, also said on CNN's "The Situation Room" Friday that removing leader Moammar Gadhafi by military means is not the aim of the mission and that the coalition is not arming rebel forces.
And the general claimed "we have achieved already a large degree of success" - including an arms embargo, the no-fly zone and the halting of loyalist troops near the rebel-held city of Benghazi.
President Barack Obama will update the nation at 7:30 p.m. ET Monday from the National Defense University at Fort McNair in Washington, D.C., the White House announced.
NATO this weekend is expected to take over control of the no-fly zone from the United States.
But Ham acknowledged that challenges remain.
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