BAGHDAD, Iraq (AP) - A month of U.S. airstrikes on rebel-held Fallujah has killed more than 100 suspected insurgents, taking a heavy toll on the terror network of Jordanian Abu Musab al-Zarqawi, senior U.S. military officials said on Sunday. The strikes have stopped attacks elsewhere in Iraq while setting off deadly feuds among insurgent groups holed up in the city west of Baghdad, said Air Force Brig. Gen. Erv Lessel, deputy operations director for U.S.-led forces here.