Increase in Combat Forces Likely in Iraq, Commanders Say BAGHDAD, Nov. 21 -- Senior U.S. military commanders in Iraq say it is increasingly likely they will need a further increase in combat forces to go after remaining areas of resistance in the country. Convinced the recent battle for Fallujah has significantly weakened insurgent ranks, commanders here have devised plans to press the offensive into neighborhoods where enemy fighters have taken refuge after fleeing Fallujah or were already deeply entrenched. But the forces available for these intensified operations have become limited by the demands of securing Fallujah and of overseeing the...