Lockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is awarded a modification (P00011) to a previously awarded cost-plus-incentive-fee $15,755,797 contract (N0001921C0040). This modification adds scope to provide continued development and integration efforts, to include program management support, in support of the F-35 Joint Strike Fighter aircraft for Israel System Development and Design Phase II efforts. Work will be performed in Fort Worth, Texas (80%); and undisclosed locations outside the continental U.S. (20%), and is expected to be completed in June 2028. Foreign Military Sales customer funds in the amount of $15,755,797 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.