(snip)
Mr Bush chose to visit Anbar because the split between the Sunni tribes and al-Qai'da in Iraq has led to a sharp reduction in attacks on US forces in this vast western province which is mostly desert aside from the Euphrates valley.
(snip)
In reality, the improvement in the US position in Anbar has nothing to do with the surge and the deployment of 30,000 extra American troops. The change in the military situation in the province is a result of a split in the Sunni guerrilla movement between an al-Qa'ida umbrella organization called the Islamic State of Iraq and the rest of the Sunni guerrillas.
The Islamic State of Iraq created widespread anger among the Sunni community by killing anybody connected with the government, such as garbage collectors or lowly employees of ministries. They were also seeking to draft one young man from each Sunni family into their forces.
Bizarrely, the US is now backing and arming Sunni tribal militias who do not answer to the Iraqi government, while pressing Mr Maliki to clamp down on the Shia militias, notably the anti-American Mehdi Army led by Muqtada al-Sadr.
http://news.independent.co.uk/world/middle_east/article2924388.ece