Named for Ryan S. McCurdy—a Marine killed in Iraq in 2006 while hauling a wounded comrade to safety—the system is designed to offer troops increased protection and mobility when setting up outposts in hostile areas. The walls can be ferried into place in panels that are easily stackable in a truck or trailer. Once in position, four Marines can assemble a single panel in less than ten minutes without any special tools or additional equipment. The panels then snap together like bomb-proofed Legos secured with steel pins to form a blast- and bullet-proof shelter.