Ahmed al-Hassani, of the hardline Ansar al-Sunna, said: We will keep going in our war that does not accept any midway solutions. Either they pull out of our country or the war will continue until we achieve victory.
http://www.focus-fen.net/index.php?id=n103114
And they've arrested 600 members of the Mahdi Army in the past few weeks.
http://www.estripes.com/article.asp?section=104&article=41980&archive=true