It would be hard to imagine a more unlikely meeting. Late in July, the tempestuous Iraqi Shiite cleric Moqtada al-Sadr traveled to Damascus from Iran, where he's been living in exile for the past three years. The trip looked at first to be a routine photo-op for Sadr and Syrian President Bashar Assad. That is, until Sadr met with Ayad Allawi, a top contender for the prime minister post in Iraq and one of the cleric's sworn enemies. Their mutual enmity dates back to a showdown in the holy city of Najaf in the summer of 2004. Sadr's Mahdi Army fighters had taken over the city and were using the Imam Ali shrine, one of the holiest sites for Shiites, as a base of operations. Allawi, who was interim prime minister at the time, gave American and Iraqi troops the green light to take them out, killing dozens of Mahdi militiamen in the process.

