Western powers are backing the Libyan rebels who were inspired by the Egyptian rebellion against western backed power.
The defined mission is to protect the civilians, not arm the rebels, who by definition are armed civilians in rebellion.
The insurgency strategy is simultaneously anti pro Qaddafi and pro anti Qaddafi.
Several nations are united in the conflict, although the stated goals of individual nations appear to conflict with those of the United Nations.
Wars whose purpose is humanitarian liberation ultimately exact an unintended toll on those humans they purport to liberate.