An M1 Abrams main battle tank provides security during the Combined Arms Company field exercise at Novo Selo Training Area, Bulgaria, Sept. 16, 2015. The CAC is a newly formed armor element supporting the Black Sea Rotational Force, which reassures our NATO allies and partners of our commitments and will enhance training exercises and operations with partners in the region. (U.S. Marine Corps photo by Cpl. Justin T. Updegraff/Released)

The Marine Corps Ground Combat and Tactical Vehicle Strategy (GCTVS) provides a framework for portfolio management and enterprise decision support. GCTVS is designed to guide and align resources with established priorities. The Marine Corps is investing approximately 29% of its modernization resources into GCTV systems within the Future Years Defense Program (FYDP). GCTVS enables senior leadership to envision and monitor current FYDP investments and outcomes, adjust the FYDP plus 5-year modernization window, and shape the FYDP plus 10-year decision space.

GCTVS identifies near- and long-range actions which drive planning, programming, and budgeting activities. The strategy guides planning for a mix of vehicles capable of supporting the range of operations that Marine Corps Operating Forces are likely to encounter. The strategy is aligned with and guided by the Marine Operating Concept (MOC) and the associated implementation actions identified in Marine Corps Force 2025, which collectively provide Service-level direction to guide combat and tactical vehicle capability development; capacity objectives; the generation of platform level concepts of employment; and development of seaborne interoperability requirements.

The overarching priority within the GCTV portfolio and the central focus of this strategy update is the replacement of the legacy Amphibious Assault Vehicle (AAV) with a combination of complementary systems. The Amphibious Combat Vehicle (ACV) program is the Marine Corps’ highest ground modernization priority and will use an evolutionary approach that consists of two increments, ACV 1.1 and ACV 1.2. In conjunction with ACV, and serving as a complementary capability, the Survivability Upgraded AAV (AAV SU) will replace a portion of the legacy AAV fleet. AAV SU provides a capability and capacity bridge to full assault amphibian modernization through a future phase or increment of ACV.

The second highest priority within the portfolio remains the replacement of the portion of the High Mobility Multi-Purpose Wheeled Vehicle (HMMWV) fleet that is most at risk; those trucks that perform a combat function and are typically exposed to enemy fires. In order to set the conditions for portfolio affordability, major modernizations are arrayed sequentially. The Joint Light Tactical Vehicle (JLTV) program will procure vehicles in three increments. Increment I has been deconflicted to accommodate ACV procurement and will replace approximately one third of the legacy HMMWV fleet, concurrent with the fielding of ACV 1.1. . JLTV Increments II and III will modernize the light fleet by replacing the oldest, most vulnerable HMMWVs first to mitigate the light fleet expeditionary protected mobility gap.

For portfolio context, GCTVS also provides insight into ongoing and planned sustainment activities designed to keep fielded systems both operationally relevant and effective.