Ask any Iraq War veteran about Jersey, Alaska, Texas, and Colorado and you will be surprised to get stories not about states, but about concrete barriers. Many soldiers deployed to Iraq became experts in concrete during their combat tours. Concrete is as symbolic to their deployments as the weapons they carried. No other weapon or technology has done more to contribute to achieving strategic goals of providing security, protecting populations, establishing stability, and eliminating terrorist threats. This was most evident in the complex urban terrain of Baghdad, Iraq.