It looks like we are already winning:
"American, Afghan and British troops seized crucial positions across the Taliban stronghold of Marja on Saturday, encountering intense but sporadic fighting as they began the treacherous ordeal of house-to-house searches.
More than 6,000 American, Afghan and British troops came in fast early on Saturday, overwhelming most immediate resistance. But as the troops began to fan out on searches, fighting with Taliban insurgents grew in frequency and intensity across a wide area.
The pattern suggested that the hardest fighting lay in the days to come"