The battle for Tikrit has not been going well for the Iraqi army, its Shia militia allies and their Iranian advisors. So the U.S. has begun flying air strikes in support. And, as the New York Times reports
Three major Shiite militia groups pulled out of the fight for Tikrit on Thursday, immediately depriving the Iraqi government of thousands of their fighters on the ground …
The militia groups, some of which until recently had Iranian advisers with them, pulled out of the Tikrit fight in protest of the American military airstrikes … insisting that the Americans were not needed to defeat the extremists in Tikrit.
The militia groups, some of which until recently had Iranian advisers with them, pulled out of the Tikrit fight in protest of the American military airstrikes … insisting that the Americans were not needed to defeat the extremists in Tikrit.

