Fire Support System

The Intelligence Support Equipment line item (LI 4747) in the FY 2026 Department of the Navy budget is focused on the procurement of advanced intelligence, surveillance, reconnaissance (ISR), and communications equipment for the Marine Corps. The overarching objective is to provide Marine Corps Intelligence with the capabilities necessary to support decision-making and operational effectiveness in line with the 2022 National Defense Strategy and Force Design 2030. These investments are intended to enhance the Marine Corps' ability to sense, collect, process, and disseminate information in contested environments, supporting both national and joint force requirements.

The Communication Emitter Sensing and Attacking System (CESAS) is a high-power ground electronic attack system designed to disrupt, deny, and degrade enemy communications. The FY 2026 request includes funding to initiate production of CESAS II Family of Systems (FoS) Enhanced Electronic Warfare (EW) kits for Ultra-Light Tactical Vehicles (ULTV) and Non-Tactical Vehicles (NTV), as well as to complete production and fielding of Joint Light Tactical Vehicle (JLTV) kits. CESAS is primarily employed by Marine Radio Battalions and Marine Forces Special Operations Command (MARFORSOC) to provide non-kinetic fires and electromagnetic spectrum awareness, supporting both reconnaissance and maneuver elements. The incremental acquisition strategy ensures that new capabilities are integrated to keep pace with evolving adversary technologies.

The Integrated Broadcast Radio (IBR) is a tactical terminal that provides near-real-time multi-intelligence data, including signals intelligence, target tracks, and situational awareness information. The FY 2026 budget continues procurement of ENTR v4 systems, Universal Accessory Kits (UAK), and initiates procurement of the IBR Transceiver. IBR supports distributed and expeditionary operations by ensuring resilient communications for disadvantaged or denied users, and its interoperability with joint and coalition partners is managed under the executive agency of the U.S. Air Force. The focus is on fielding these systems to Marine Expeditionary Forces and Reserves to meet operational requirements.

The Tactical Signals Intelligence Collection System (TSCS) is the primary program for providing modular, lightweight, and portable signals intelligence and electronic warfare capabilities. The FY 2026 budget supports procurement of equipment across TSCS Increments I-IV, including core receivers, antennas, body-worn systems, tactical servers, and advanced signal processors. These systems enable precision geolocation, direction finding, and collection management, supporting both lethal and non-lethal operations against advanced adversary communications. The program also includes technical refreshes and capability upgrades to address obsolescence and maintain operational relevance.

The Marine Corps Sensitive Compartmented Information Network (SCINet) is the TS/SCI portion of the Defense Information System Network, providing secure voice, data, and video communications. The FY 2026 request includes continued procurement of servers, storage, and network hardware, as well as integration efforts to support additional SCI facilities. SCINet enables access to national intelligence data and supports both garrison and tactical operations, enhancing the ability of Marine Corps intelligence to provide timely and actionable information to commanders.

Sensitive Compartmented Information (SCI) Communications (SCI Comms) is a deployable, multi-band communications system supporting intelligence operations at the TS/SCI level. The FY 2026 budget requests continued procurement of High Bandwidth Special Intelligence-Palletized Terminal (HBSI-PT) replacement systems and Proliferated Low Earth Orbit (PLEO) kits. SCI Comms provides high-capacity, near-real-time access to intelligence from national agencies and supports resilience and redundancy in communications for Marine Expeditionary Forces and crisis response operations.

The Terrestrial Collection System (TCS) and Counterintelligence and Human Intelligence Equipment Program (CIHEP) round out the major investments in this line item. TCS funds procurement of ground and maritime sensors to support persistent ISR and domain awareness for littoral and maritime operations. CIHEP supports procurement of technical surveillance countermeasures and specialized collection equipment for CI/HUMINT Marines, enabling them to operate in both permissive and non-permissive environments and address emerging threat technologies. These investments ensure that Marine Corps intelligence remains agile, interoperable, and capable of supporting joint and national-level intelligence requirements.