UrsusArctos: If you take a close look, you can see the electrical overhead lines for a submerged railroad track running past the cliff. For all the military nerds and Kensuke fans watching this, those are Japanese Type 74 tanks. The military always seemed to use tactics straight out of Hollywood movies in the show - the tanks are densely packed on a narrow road, and if Sachiel wrecks two ends of the column the entire lot can be trapped and destroyed.
