In the Phase I effort, IFT proposed a Holistic networking Infrastructure for tactical Satellite Communication Networks (HISCoN). It supports optimal network resource management and cross-layer cooperation that allow satellite communication networks to intelligently accommodate the communication needs of various missions/tasks with diverse traffic characteristics and drastically different QoS requirements. Novel enabling technologies have been developed at the physical layer for RF situation awareness, efficient QoS-aware spectrum allocation, and anti-jamming communication, and at the network layer for QoS-aware routing and scheduling. The Phase I effort has provided convincing results of proof-of-concept designs that enable the development of a holistic integrated system for space-borne communication network technology transition. In Phase II, our goal is twofold: to refine and expand the HISCoN algorithms by addressing a broad scope of issues in practical implementations, and to integrate the proposed technologies and tools for extensive performance evaluation and visual demonstration in realistic mission scenarios. There are three major milestones: 1) implementation and testing of the main components (i.e., the proposed communication/networking algorithms, CR hardware testbed, the co-simulation platform and the 3D simulation/visualization engine); 2) integration of all the components into an operational demonstrator; and 3) simulations of realistic scenarios to obtain desired results.