While Rain thought of that, he also decided to think about the situation. A small group of six men wouldn't be able to defend the villages, but the realm couldn't afford any more manpower than that for such small areas.
"In the end, the enemies only want us to spread our forces again… I thought that we had the upper hand now, but they want to take back the power to control the flow of the war," Rain thought. "I suppose we need to do something that will make sure that the enemies won't surprise us here, and even six people can deal with them."
Rain thought for a while and then recalled all the dirt that they had removed from the ground to move the river. Maybe they could use that, but it will take a while to make something like a wall. Rain's hands were already busy with that, and the wall wouldn't last long against the magic people anyway.