The Tactical Networked Communication Architecture Design (TaNCAD) lab at NPS focuses on developing advanced network architecture, protocols, and test/analysis tools for challenged communication domains, both adversarial and environmental. Our focus is ensuring the resilience and survivability of tactical communication systems through rigorous design at the topology layer, routing protocols, and both hop-by-hop and end-to-end reliability mechanisms. This is complemented by careful selection of application models that work in synergy with lower-layer resilience mechanisms. is based at the Naval Postgraduate School in Monterey, CA.