AP News in Brief at 5:58 p.m. EDT - Quincy Herald-Whig | Illinois & Missouri News, Sports

SHARM EL-SHEIKH, Egypt (AP) - A two-day Arab summit ended Sunday with a vow to defeat Iranian-backed Shiite rebels in Yemen and the formal unveiling of plans to form a joint Arab intervention force, setting the stage for a potentially dangerous clash between U.S.-allied Arab states and Tehran over influence in the region.