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The Battle for Tikrit
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Smoke rises from an explosion as Iraqi forces, Shiite militiamen and Sunni tribal fighters battle Islamic State militants for control of Tikrit, Iraq, March 3, 2015.
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Iraqi security forces and Shi'ite fighters fire artillery during clashes with Islamic State militants in Saladin province, March 2, 2015.
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Iraqi security forces and Shi'ite fighters reload a weapon during clashes with Islamic State militants in Saladin province, March 2, 2015.
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Iraqi Hezbollah fighters carry the coffin of their comrade, Ali Mansour, who his family says was killed in Tikrit fighting Islamic militants, during his funeral procession, in the Shiite holy city of Najaf, Iraq, March 2, 2015.