Shi'ite cleric Ahmed al-Rubaei (L) speaks with Iraqi soldiers and Shiite fighters in Udhaim dam, north of Baghdad March 1, 2015. Wearing military fatigues and a white turban, the Shi'ite cleric gave an eve-of-battle address to fighters preparing to attack Islamic State militants in Tikrit, praising them for defending their faith and urging them to fight honourably. Picture taken March 1, 2015. To match Insight MIDEAST-CRISIS/IRAQ-FRONT REUTERS/Thaier Al-Sudani (IRAQ - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY RELIGION)