Leidos Inc., Reston, Virginia, has been awarded a $9,900,000 indefinite-delivery/indefinite-quantity, ceiling increase modification (P00023) to a previously awarded contract (FA8730-17-D-0004) for the continuation of system engineering and integration work. The modification brings the total cumulative face value from $350,000,000 to $359,900,000. Work will be performed at Eglin Air Force Base, Florida; Hanscom AFB, Massachusetts; Orlando, Florida; and San Diego, California, and is expected to be completed by Dec. 7, 2026. This contract includes Foreign Military Sales to Australia, Bahrain, Belgium, Bulgaria, Canada, Chile, Denmark, Egypt, France, Germany, Greece, India, Indonesia, Iraq, Israel, Italy, Japan, Jordan, Morocco, Netherlands, New Zealand, Norway, Oman, Philippines, Poland, Portugal, Qatar, Romania, Saudi Arabia, Singapore, Slovakia, South Korea, Taiwan, Thailand, Turkey, the United Arab Emirates, Ukraine, and the United Kingdom. No funds are being obligated at the time of award. The Air Force Life Cycle Management Center, Hanscom AFB, Massachusetts, is the contracting activity.