Lockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is awarded a $422,244,473 cost-plus-fixed-fee, firm-fixed-price contract to provide program management, logistics, sustainment, and systems engineering services in support of the integration of the government of the Czech Republic into the F-35 Joint Strike Fighter program as a Foreign Military Sales (FMS) customer. Work will be performed in various undisclosed locations outside the continental U.S. (CONUS) (96%); and various undisclosed locations within CONUS (4%), and is expected to be completed in September 2027. FMS customer funds in the amount of $422,244,473 will be obligated at time of award, none of which will expire at the end of the current fiscal year. This contract was not competitively procured pursuant to 10 U.S. Code 3204(a)(4). Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity (N0001924C0056).