[JCB]

Fallujah?! What other army in the world would try to improve the drinking water of the people who support the enemy? Most armies would poison it!

[LdSentinal]

The easiest way to end the resistance is to blockade these cities from getting food and water supplies like in Basra and Umm-Qusar at the beginning of the war. However, the only drawback would be the killing of thousands of innocents to get the insurgents.