Project Convergence Capstone 4 works to integrate joint, multinational defense systems

By Spc. Jackson GrayFebruary 27, 2024

Persistent Experimentation: PC-C4 transforms ‘how we fight’
1 / 2 Show Caption + Hide Caption – U.S. Army Spc. Cartia Carter, assigned to the 524th Division Sustainment Support Battalion, 25th Division Sustainment Brigade, readies a vehicle as he prepares for experimentation during Project Convergence - Capstone 4 at Camp Pendleton, Calif., Feb. 15, 2024. (Photo Credit: U.S. Army photo by Spc. Hunter Grice) VIEW ORIGINAL
Marines Conduct Test and Experimentation of Drone
2 / 2 Show Caption + Hide Caption – Marines and U.S. Army civilians, assigned to the U.S. Army Combat Capabilities Development Command, and Marine Corps War Fighting Lab, conduct experimentation on the Tactical Resupply Vehicle-150 at Camp Pendleton, Calif. during Project Convergence - Capstone 4. The TRV-150 is designed to provide rapid and assured, highly automated aerial distribution of supply packages to small units operating in contested environments.

PC-C4 is an U.S. Army hosted joint and multinational experiment that will inform the integration of modernization capabilities and formations at multiple echelons in the future operating environment. (Photo Credit: U.S. Army photo by Pfc. Syrr Parker)
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CAMP PENDLETON, Calif. — Pushing forward on Army Futures Command's mission of multinational and joint interoperability, Project Convergence Capstone 4 is experimenting with the capabilities of joint and multinational layered air and missile defense systems.

PC-C4 is an Army-hosted, joint and multinational experiment that will inform the integration of modernization capabilities, such as layered defense systems that will increase the effectiveness of weapon systems and force protection.

Layered defense's primary goal during PC-C4 is to experiment with sensor capabilities from unmanned drones and manned aircraft that send data to translating nodes that interpret it for anti-aircraft interceptors.

"Layered defense means we will see different weapons against targets from the defended area," said U.S. Air Force Maj. Morgan Huttes, the director of operations from the 134th Air Control Squadron. "This way the coalition can increase the probability of kill while maximizing our weapons efficiency."

Project Convergence Capstone 4 Allied Servicemember Portrait
1 / 2 Show Caption + Hide Caption – Lt. Col. Deborah Chen, an aviation officer assigned to Futures and Concepts Center, during Project Convergence - Capstone 4 at Camp Pendleton, Calif. on February 16, 2024. (Photo Credit: U.S. Army photo by Staff Sgt. Wheeler Brunschmid) VIEW ORIGINAL
726th Air Control Squadron test communications during Project Convergence-Capstone 4
2 / 2 Show Caption + Hide Caption – U.S. Airmen assigned with the 726th Air Control Squadron, 366th Operations Group, setup a communication system at Camp Pendleton, Calif., during Project Convergence-Capstone 4. This system allows the USAF to share ground data expeditiously with Air Traffic Control Towers and ground forces across various locations simultaneously. This is just one of many experiments part if the month-long event.

PC-C4 is the largest, two-phase experiment to date and assess how technology can enhance cross-domain military operations and unified strategic approaches involving partners from various nations and joint services. (Photo Credit: U.S. Army photo by Spc. Christ-Claude Mowandza-Ndinga)
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The experiments at Capstone 4 will focus on implementing these strategies as a team of Multinational and Joint forces.

"During PC-C4, we are truly integrating all the services," Huttes said. "We are using a U.S. Marine Corps F-35 as the sensor, with a U.S. Air Force unit as the battle management node translating the data so that the target can be shot by an Army missile."

The F-35 Raptor is used by the U.S. Marine Corps, the U.S. Air Force and U.S. Navy, as well as many NATO and foreign allies, such as the United Kingdom, Australian and Japanese militaries.

"We use the F-35 out here when we're looking for all kinds of vehicles and ships," said U.S. Marine Corps Maj. Matteo Occhipinti, a Naval Aviator who has flown with the F-35 extensively. "The big leap in technology is the sensors, and then the data links and the fusion between the two."

726th Air Control Squadron test communications during Project Convergence-Capstone 4
1 / 2 Show Caption + Hide Caption – U.S. Airmen with the 726th Air Control Squadron, 366th Operations Group, setup a communication system at Camp Pendleton, Calif., during Project Convergence-Capstone 4. This system allows the USAF to share ground data expeditiously with Air Traffic Control Towers and ground forces across various locations simultaneously. (
PC-C4 seeks to increase Joint and Allied participation as we ensure the Army, as part of a Joint and Multinational force, can rapidly and continuously converge effects across all domains. (Photo Credit: U.S. Army photo by Spc. Christ-Claude Mowandza-Ndinga)
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726th Air Control Squadron test communications during Project Convergence-Capstone 4
2 / 2 Show Caption + Hide Caption – U.S. Airmen with the 726th Air Control Squadron, 366th Operations Group, setup a communication system at Camp Pendleton, Calif., during Project Convergence-Capstone 4. This system allows the USAF to share ground data expeditiously with Air Traffic Control Towers and ground forces across various locations simultaneously.

PC-C4 is a month-long experiment allowing Joint and Multinational Forces to determine how warfighting communications, operations and maneuver would occur in the Future Operational Environment. (Photo Credit: U.S. Army photo by Spc. Nathan Smith)
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The Joint and Multinational qualities of these experiments are essential to maximizing the sensors, battle management nodes, and weapons, which complicates the enemy's targeting and eliminates a single point of failure.

"It comes down to fighting for information because even in exercises, there are unknown factors," Huttes said. "It comes down to teaching your airmen, Soldiers and marines, regardless of rank, to fight for the information they need at their level to help inform commander's intent and increase their lethality."

These experiments will increase joint and allied participation as we ensure the Army, as a part of a joint and multinational force, can rapidly converge effects across all domains and help create the Army of 2030.

"The more we do this together, the easier it becomes in reality," said British Army Lt. Col. Callum Lane, the U.K. exchange officer within the U.S. Army Joint Modernization Command, in charge of multinational integration and interoperability. "And the more agile we become, not just as institutions in our own right, as nations in our own right, but as a partnership of institutions and nations."