An Iraqi helicopter flies in a cloud of smoke during clashes with Islamic State militants in the town of al-Alam March 9, 2015. Just north of Tikrit, home city of executed Sunni former president Saddam Hussein, Iraqi security forces and Shi?ite militia fighters began an offensive against Islamic State to regain control over the town of al-Alam. REUTERS/Thaier Al-Sudani (IRAQ - Tags: POLITICS CIVIL UNREST CONFLICT)