Science Applications International Corp. (SAIC), Reston, Virginia, is awarded a $41,000,000 modification to a previously awarded, indefinite-delivery/indefinite-quantity, cost-plus-fixed-fee contract (N66001-18-D-0023) to provide continuing sustainment support of integrated afloat and ashore tactical networks for Naval Information Warfare Center Pacific. No funds will be obligated at the time of award. Funds to be obligated include other procurement (Navy); ship construction (Navy); and operations and maintenance (Navy). This modification increases the estimated value of the contract from $196,526,884 to $237,526,884. Work will be performed in San Diego, California; globally aboard Navy ships; and at Department of Defense and military installations and facilities. The period of performance of the base award is from July 3, 2018, to July 2, 2023, and is not being extended by this modification. The Naval Information Warfare Center Pacific, San Diego, California, is the contracting activity.