Lockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is awarded a not-to-exceed $107,475,142, undefinitized, cost-plus-fixed-fee modification (P00006) to order N0001921F0849 against a previously issued basic ordering agreement (N0001919G0008). This modification adds scope to provide for the development, test and integration of the U.S. and exportable cross domain solution, interim and final components, as well as inline file encryption devices and associated systems engineering to develop mission planning enterprise country kit requirements for the F-35 NextGen Mission Planning Enterprise Software, in support of the Joint Strike Fighter Program for the Navy, Air Force, Marine Corp, Foreign Military Sales customers, and non-U.S. Department of Defense (DOD) participants. Work will be performed in Fort Worth, Texas, and is expected to be completed in July 2028. Fiscal 2024 research, development, test and evaluation (Air Force) funds in the amount of $2,250,000; fiscal 2024 research, development, test and evaluation (Navy) funds in the amount of $2,250,000; and non-U.S. DOD participant funds in the amount of $1,002,238, will be obligated at the time of award, none of which will expire at the end of the current fiscal year. Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.