Displaced families sit in a military vehicle after returning to their homes at the town of Tal Ksaiba, near the town of al-Alam March 7, 2015. Fierce fighting continued on the outskirts of Saddam Hussein's home city Tikrit, as Iraqi government forces and Iran-backed militiamen pressed on with the biggest offensive yet against Islamic State militants who seized the north last year.Picture taken March 7, 2015. REUTERS/Thaier Al-Sudani (IRAQ - Tags: POLITICS CIVIL UNREST CONFLICT)