Excerpt from "The Big Book of Fighting Vehicles of North American Countries". Published by Adobe Press (CA) and intended for teenage readers. "California: Caterpillar Equipment manufactures trucks, autos, and fighting vehicles used throughout California and it exports "safe" versions to other western nations. The best regarded tank produced in any North American nation has to be the Caterpillar C-17. The C-17 is the largest, best armored, and most powerful tank produced in the NA.