Marine Corps Plans Major Expansion of Infantry, Drone and Air Defense Forces
The Marine Corps plans to add more than 6,500 positions over the next five years as part of a broad expansion focused on infantry strength, unmanned aircraft, air defense and advanced digital warfare.
The additional personnel will support 64 separate initiatives across the service. Plans include reinforcing Marine forces in the Pacific, expanding infantry battalions, creating new military occupational specialties and establishing additional training programs for unmanned aircraft systems.
Under the plan, the Marine Corps intends to increase its authorized end strength by approximately 4 percent by 2031, followed by another 1 percent increase in 2032.
The expansion is designed to ensure the Corps has enough properly trained Marines to operate the advanced equipment introduced through its ongoing modernization efforts. These capabilities include robotics, artificial intelligence, autonomous platforms, precision weapons and systems designed to detect and defeat enemy drones.
The announcement follows years of experimentation aimed at preparing Marines for combat in widely dispersed regions such as the Indo-Pacific. It also supports the recently released Ground Combat Element 2040 strategy, which outlines how Marine ground forces are expected to evolve over the next 15 years.
As part of those changes, the Corps plans to increase the number of Marines assigned to crew-served weapons, field additional 60mm and 81mm mortars and establish supplemental heavy machine gun platoons.
Infantry formations will receive a significant portion of the new personnel. Nineteen infantry battalions and two Marine littoral combat teams will gain additional Marines to establish heavy guns platoons and expand their precision-fire, intelligence, surveillance and reconnaissance capabilities.
The service is also preparing for battlefields increasingly shaped by unmanned systems. Each Marine expeditionary force is expected to receive a robotics and autonomous systems company.
A second Small Unmanned Aircraft System Schoolhouse will also be established at the School of Infantry–West. The new school will increase the Corps’ ability to train Marines who operate and support small drones.
Marine installations are also scheduled to receive dedicated counter-unmanned aircraft personnel and equipment. These units will be responsible for helping protect bases and other facilities from potentially hostile drones.
The expansion will introduce new career opportunities as well.
The Marine Corps is establishing the 0315 Scout military occupational specialty. Marines assigned to the new field will serve in 26-person scout platoons equipped with advanced sensors, optics and other reconnaissance equipment.
Lt. Gen. Jay M. Bargeron, deputy commandant for Plans, Policies and Operations, described the creation of the scout specialty as an important part of modernizing Marine infantry battalions.
The Corps is also creating a dedicated career path for digital operations by converting the 0673 designation into a primary military occupational specialty.
According to the Marine Corps, the overall plan is intended to provide four major wartime advantages: improved power projection—particularly in the Pacific—greater use of robotics and autonomous systems, expanded training capacity and a larger number of Marines with specialized technical skills.
Together, the changes reflect the Corps’ effort to strengthen its traditional infantry foundation while building a force capable of fighting with drones, precision weapons and advanced digital systems.