Shi’ite militias have pulled back from the Tikrit operation. The army’s special forces and federal police are now leading the final push on the city instead. The drawdown was a condition for U.S. airstrikes, as was the demand for a coherent plan of attack. Gen. Lloyd Austin, head of US Central Command, said the militias were undermining the operation.

On Wednesday, Baghdad requested U.S. airstrikes to help dislodge militants in Tikrit, and warplanes began flying those missions. The strikes coincided with the resumption of an operation to liberate Tikrit that stalled two weeks ago.

The Iraqi government asked the U.S. military to conduct aerial surveillance over Tikrit. At least 105 people were killed, and 94 more were wounded in fighting and attacks.

A complicated state of affairs has slowed the Battle for Tikrit. Meanwhile, at least 189 were killed and 56 were wounded in mostly other violence.

M.P. Shakhawan Abdullah, head of Parliament’s Security and Defense Committee, called the 30,000 Iranian forces are operating in Iraq a threat to national sovereignty. Nearly echoing the Kurdish lawmaker’s complaint, C.I.A. Director John Brennan warned that these forces are contributing to the destabilization of the country.

At least 93 people were killed, mostly militants. Another 26 were wounded.

Few casualties were reported today. Not only is it the weekly prayer day, but also the festival of Newroz, which marks the beginning of the year in the Persian calendar. At least 43 were killed and 15 were wounded. Also, a clearer picture of the casualties in Tikrit...

At least 74 were killed, but no wounded were reported. In an attempt to stop Shi’ite militia revenge attacks, members of the Albu Ajil tribe said they had evidence they helped Camp Speicher soldiers evade militants last summer.

At least 79 people were killed or died and seven more were wounded in attacks across Iraq.

The head of the Kurdistan Security Council, Masrour Barzani, accused Baghdad of keeping funds meant for the Kurdish region, while still subsidizing regions under militant control and paying salaries to unofficial militias. Baghdad claims that the Kurds have not contributed their fair share as promised in an oil agreement. The dispute could encourage the Kurds to withdraw from parliament.