United States, Nov. 17 -- Mantech Advanced Systems International Inc., Herndon, Virginia, has been awarded a $42,990,248 modification (P00175) to a previously awarded contract (FA8819-18-C-1001) for continued specialized acquisition and operations security services. The modification brings the total cumulative face value of the contract to $333,281,082 from $290,290,835. Work will be performed at Los Angeles Air Force Base, and Vandenberg Space Force Base, California; and Peterson SFB, and Schriever SFB, Colorado, and is expected to be completed by Nov. 16, 2026. Fiscal 2025 research, development, test and evaluation funds in the amount of $3,319,456; fiscal 2025 Space Force procurement funds in the amount of $435,553; and fiscal 2026 opera...