US soldiers foiled two suicide truck bombings against their base in a small town west of Baghdad and killed as many as 15 attackers, the US military reported Tuesday. The attacks began when a water truck tried without permission to drive into the base just north of Karmah, a small town not far from Fallujah, about 2 p.m. Monday. A soldier opened fire and the truck bomb exploded. The military said 30 insurgents then opened fire with small-arms fire, rocket-propelled grenades and mortars. Five minutes into the firefight, a dump truck following the same path as the exploded water truck tried to smash into the base but the driver was shot and that truckload of explosives blew up as well. The military estimated it killed 15 insurgents in the fight and said eight soldiers were wounded. Seven of the wounded returned to duty after treatment by medics on site. One soldier required hospitalization. Karmah is 80 kilometers west of Baghdad.