The army has placed a renewed emphasis on an embedded training capability as a result of lessons learned from the Advanced Warfighting Experiment (AWE) 97-06 on the potentials of digitization. Through the Inter-Vehicle Embedded Simulation Technology (INVEST) Science and Technology Objective (STO), the Simulation Training and Instrumentation Command (STRICOM) will develop the technology that will lay the foundation for incorporating embedded simulation into future and legacy combat vehicles. This paper presents current status and future evolution of the enabling technologies needed to fully embed these technologies into a combat vehicle. These ES systems will support both training and operational (go-to-war) enhancements for the Army XXI and Army After Next inventory of combat vehicles. The key enabling technologies for an autonomous vehicle capability include: low cost image generation, live-virtual object and terrain integration, virtual target injection into sensor displays, synchronized semi-automated player models, simulation filtering tool, intelligent tutoring system, time-based and UWB communication, and automated vehicle model development and optimization.