A military offensive by American and Iraqi forces to reclaim rebel-held Falluja is probably inevitable and would be the largest and potentially the riskiest since the end of major combat in May 2003, senior American officers say. It would also involve major operations to seize control of Ramadi, another contested Sunni Muslim city 30 miles away, and to shut Syrian border crossings to prevent foreign fighters from streaming into Iraq, Marine commanders here say.Full Story