MUSA QALA, Afghanistan - Coalition and Afghan forces killed 26 suspected militants Wednesday in fighting in eastern mountains, while in southern Afghanistan, more than 11,000 troops prepared for their biggest offensive since the fall of the Taliban five years ago. Suspected Taliban militants attacked a coalition logistics patrol in Helmand province in southern Afghanistan with rocket-propelled grenades and small arms fire, killing one American soldier and wounding two others, the U.S. military said. About 100 British troops were quickly air-dropped in to support the patrol and coalition air fire killed or wounded 12 militants in the area, said coalition spokesman...