This paper reports the successful deployment of a robust scalable interest-managed router architecture that has supported a series of trans-continental simulations, such as Urban Resolve. Previous architectures had served well over the years, but were conceptually limited both in scalability and in robustness, or fault-tolerance. The scalable router architecture had its inception in high performance parallel computing research and its initial application in a truly scalable architecture for inter-node communications on parallel supercomputers and Linux clusters. Its design provided both needed scalability and desirable robustness on the single platform meshes of several large parallel computers made up of hundreds of compute nodes. The scalable router was designed to integrate smoothly with other Urban Resolve software by reusing Run Time Infrastructures (RTI-s) components. In an effort to minimize communication latency, maximize use of available network bandwidth, and increase robustness of trans-continental (Virginia to Hawai'i) operations, Joint Forces Command's J9 directed that its wide-area router's offer the same characteristics of scalable and robust operations. That led to the wide-area deployment of the scalable routers. This paper sets forth the experience of that evolution, the non-disruptive incorporation of the new routers, the scalability of the interest-managed routing, and the performance of the new network. The assiduous factorization of the program, in order to optimize and temper the code, bore fruit during the implementation process and that factorization activity is explicated and analyzed. Further, the authors look to their experiences in high performance computing to lay out future capabilities and directions for additional development. The area of primary interest and importance is fault tolerance. A specific proposal for the design and fielding of a system impervious to the loss of individual router processes is presented.