ABOARD GEO BARENTS (AP) — Libya’s rival sides reached an initial agreement Friday on the withdrawal of foreign fighters and mercenaries from the North African nation, the United Nations said, a key step toward unifying the warring sides in violence-wracked country... ...The U.N. mission mediating between the rivals said a 10-member joint military commission, with five representatives from each side, inked a “gradual and balanced” withdrawal deal Friday, at the end of three-day, U.N.-facilitated talks in Geneva...