 On April 10, the U.S. military declared a unilateral truce to allow for humanitarian supplies to enter Fallujah, and pulled troops back to the outskirts of the city.Local sheikhs and imams refused to honor the cease-fire agreement, and repeatedly sent mujahideen fighters to attack the Marines.The city's main hospital was occupied by Coalition Forces to protect its patients, and a sniper was placed on top of the hospital's water tower.