United States, Sept. 30 -- Systems Planning and Analysis Inc., Alexandria, Virginia, is being awarded a $500,000,000 Small Business Innovative Research Phase III, indefinite-delivery/indefinite-quantity, cost-plus-fixed-fee term contract (N0003026D3019), for Trident II Submarine Launched Ballistic Missile and Strategic Weapons System (SWS) engineering and support functions. This value includes all optional lines items. Tasks to be performed include systems engineering (SE) and analysis support, technical assessments and future studies, arms control and treaty support, risk assessment and high consequence event prevention framework, nuclear deterrence mission oversight counsel technical support, program integration support, strategic deterre...