ManTech Advanced Systems International, Fairfax, Virginia, is awarded a $26,279,754 modification (P00012) to a previously awarded cost-plus-fixed indefinite-delivery/indefinite-quantity contract (N0042117D0036). This modification is increasing the ceiling to continue to provide warfare analysis, modeling and simulation, software development, architectures builds and assessments, acquisition analysis and support, and analytic program support in support of naval and joint warfighting capability assessment and warfighting analytic efforts for the Naval Air Systems Command, Naval Aviation Enterprise, Chief of Naval Operations, and Foreign Military Sales customers. Work will be performed in Patuxent River, Maryland, and is expected to be completed in June 2022. No funds will be obligated at the time of award; funds will be obligated on individual orders as they are issued. The Naval Air Warfare Center Aircraft Division, Patuxent River, Maryland, is the contracting activity.