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Project Convergence Capstone 4

What is Project Convergence Capstone 4?

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Location: California, USA

Project Convergence is the premier US Army experimentation exercise, seeking to define how the US and international partners, including the UK and Australia, will fight in a multi-domain battlespace.

The exercise, including UK soldiers, will test cutting-edge systems and technologies, including some for the first time ‘on the ground’. It is designed to help make the British Army more lethal on the battlefield, by cutting down on time and complications in what is called the ‘sensor-decider-effector-sustainer’ chain.

Fundamentally, this is about minimising the time between identifying enemy targets and being able to decide and then have an effect on them, using Artificial Intelligence and emerging technologies.

The exercise is more than a singular event, it is a sustained campaign of learning designed to advance and integrate our allied forces. It will ensure that we can rapidly and continuously ‘converge’ effects across the battlefield.

Who will be involved?

Several formations and units will be involved with Project Convergence.


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The Brigade Combat Team (BCT) will lead the British Army’s participation in Project Convergence Capstone 4 and conduct our most sophisticated experiment to date. It will  involve nearly 20 technologies and around 500 serving personnel.



1 Deep Reconnaissance Strike Brigade Combat Team

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2nd Battalion The Royal Yorkshire Regiment has been our lead experimentation battalion testing cutting-edge technology, as architects of how the British Army will fight in the future.

Find out more about the Yorkshire Regiment

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The Ranger Regiment

The Ranger Regiment, established as part of Future Soldier, will also assist in the exercise.

A Ranger Regiment Task Group will be embedded with US Special Operations Forces to grow linkages and exploit best practices.

Why is Project Convergence Capstone 4 important for the British Army?

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The British Army is undertaking its largest modernisation programme for a generation, focussing on delivering a British Army that is fit for the challenges of the future. A future in which it is more lethal, agile and expeditionary; an army able to fight and win wars and to compete successfully in the grey zone between peace and war.

Key to both this modernisation agenda and the success of Project Convergence Capstone 4 (PCC4) is Digital Transformation. Over the next 10 years, the totality of the Army’s deployable digital system will be modernised through an ambitious programme.

This includes wholesale modernisation of its expeditionary command, control communications and Information Systems capability, a first-class Land Intelligence Surveillance Target Acquisition and Reconnaissance capability, linking sensor to decider and effectors, and world-leading Army Cyber and Electromagnetic Activities capability.

As well as giving us a valuable opportunity to test and adjust our sensor, decider, and effector networks, PCC4 will enable us to integrate with the networks of allies and partners. Sharing data at speed across networks and national forces is vital to success on the modern battlefield.

What equipment will be involved?

Deep Recce Strike (DRS)

By establishing the division's multi-domain Surveillance and Target Acquisition Plan and coordinating delivery of multi-domain fires, the UK's DRS Brigade Combat Team will find, understand and strike the enemy.

This will defeat sufficient enemy combat power to give a decisive advantage in a close battle. 

UK Commando Forces

A Commando Force that is more sophisticated, more lethal and more persistently forward.

Delivering Special Operations supported by an integrated, effective and efficient Offensive Support Group.

Offering specialist separate command and control, at multiple points of presence. With an array of lethality options they will be able to protect and enable access for the UK Commando Force and follow-on-forces. 

Army Special Operations Brigade (ASOB)

Elements of ASOB will operate alongside the US Army Special Operations Forces (SOF) in the deep battle space. 

These forces are developing interoperability to achieve a combined SOF, Cyber and Space triad. 

Whilst operating in the deep battle space, SOF can operate as a sensor and blend tactical activity with operational stand-off effects alongside partner forces and proxies. 

These activities enable the Joint Force to defeat Anti-Access and Area Denial systems, creating manoeuvre corridors and maintaining information dominance. 

Experimentation and Trials Group (ETG)

ETG will deploy a Robotics and Autonomous Systems (RAS) enabled Battlegroup (BG) consisting of up to 300 personnel including Engineers, Artillery and Electronic Warfare assets. 

This RAS BG will participate in several scenarios. The RAS BG will showcase an experimental integrated tactical network called CAIN-X, linking it to the Brigade Joint Fires and Deep Effects Network. 

A collection of UAS and ground based robotics will support ISR collection as part of the sensor-decider-effector suite of capabilities. 


The Royal Air Force will be providing NEXUS, which includes the modernisation and digitisation of the RAF's C2 structure. 

This will be achieved by empowering aviators with a single data layer that can be accessed to provide users the right information at the right time and in the right format. 

Presented on a single pane of glass that displays the multiple feeds that are currently independently tailored to the individual user account and security. 

AUKUS Resilient, Autonomous and Artificial Intelligence (AI)

Under AUKUS Pillar 2, the UK alongside the US and Australia, seek to develop and apply resilient autonomy and AI to enhance the effectiveness of adjacent, collaborating coalition forces with pervasive wide-area situational awareness.

This will lead to improved decision making, increased operational tempo, reduced risk to life and reduced workforce burden.  

Deployable Automated Stores (DAS)

The DAS is a tracking system, available in both TEU and briefcase configurations, which transmits data (4G and Starlink). 

This includes temperature and humidity cycles, mechanical shock, power levels of the system and live item holdings.

It informs transparency of dispersed inventory in remote locations, enabling precision sustainment and proactive inventory management, predicting replenishment based on accurate and timely supply and demand data. 


To outpace our adversaries in the development of integrated sensor-decider-effector chains and maintain pace with our allies the UK is developing Zodiac. 

Project Zodiac will provide the UK's Land ISTAR system core, connecting and integrating data from multiple sensors and effectors, enabling better, faster decision making and increased operational tempo. 

The provision of Zodiac Edge nodes will connect sensors to tactical bearers, enabling fusion and efficient exploitation of data at the operational 'edge'. 

Zodiac Headquarters Nodes will draw on data from Zodiac Edge Nodes, as well as Joint and Allied data sources, leading to improved and shared situational awareness and understanding. This will enable better analysis and decision making.

PRIISM Integrated Targeting

This will support the automation of critical targeting decisions, reducing user workloads, speeding up sensor-to-shooter timelines, and ensuring the achievement of desired effects. 

Geospatial Intelligence (GEOINT)

GEOINT is the spatially and temporally referenced intelligence.

It is derived from the exploitation and analysis of imagery intelligence and geographic information to establish patterns or to aggregate and extract additional intelligence. 

GEOINT is often a key enabler for multi-domain intelligence produced by the blending of multiple intelligence sources, such as human intelligence (HUMINT), open source intelligence (OSINT), measurement and signature intelligence (MASINT) and signals intelligence (SIGINT).