NATO Allied Rapid Reaction Corps

NATO Allied Rapid Reaction Corps Headquarters Allied Rapid Reaction Corps (HQ ARRC) is a UK based High Readiness NATO Headquarters. It began its journey fighting under Wellington at Waterloo.

Headquarters Allied Rapid Reaction Corps (HQ ARRC) provides NATO with a well-manned, rapidly deployable, flexible HQ that can act as a Joint, Land or Corps HQ for operations and crisis response. Its European, multi-national ethos, combination of cultures and innovation, strong professional reputation in NATO and proven track record in interoperability are unique among its High Readiness Force (Lan

d) (HRF(L)) peers.

2017 marked the 25th anniversary as HQ ARRC and 200th Anniversary of its antecedent, 1 Corps. Throughout its history the Corps has played a key role in international events. In the First World War it fought in France and Belgium, and in the Second World War it was responsible for two of the D-Day beachheads and a number of airborne assaults, as part of the Allied re-entry into Europe. Throughout the Cold War 1 (BR) Corps was the UK’s contribution to NATO’s defence against the Soviet Union. With the end of the Cold War, HQ ARRC emerged as the first NATO Rapid Reaction Land Force Headquarters. Such was the success of the structure developed by ARRC, in 2002 it was used as the model for the development of other HRF(L) Headquarters. From 1994 until 2010, the ARRC was based in Rheindahlen, Germany. In 2010 the ARRC moved to its current location at, Imjin Barracks, Gloucester. In line with its operational ethos, ARRC commanded the Land element of NATO's first ever deployment as part of the Implementation Force (IFOR) operation in Bosnia in 1995. It deployed again as the headquarters commanding Land Forces during the Kosovo War in 1999. Other operations have included the formation of the International Security Assistance Force (ISAF) in Afghanistan in 2006 and as ISAF Joint Command in 2011. Today, the ARRC is the UK’s largest deployable Land HQ. It remains the UK’s contribution to NATO’s HRF(L) structure and is unique amongst all other HRF(L)s by falling under the direct Operational Command of Supreme Allied Commander, Europe (SACEUR) during peacetime. Although HQ ARRC’s ‘framework nation’ is the United Kingdom, comprising approximately sixty percent of the overall staff, the ARRC is fully multinational in nature and organisation, with twenty-one NATO and Partner Nations overall contributing personnel. A number of other nations will become part of the ARRC before the end of 2017.

🇮🇹 Celebrazione della Festa Nazionale Italiana 🇮🇹On 2 June 2026, the Italian contingent from HQ ARRC marked Italy’s Nati...
03/06/2026

🇮🇹 Celebrazione della Festa Nazionale Italiana 🇮🇹

On 2 June 2026, the Italian contingent from HQ ARRC marked Italy’s National Day with a commemorative event at Gloucester Cathedral.

Major General Massimiliano Quarto Deputy Commander HQ Allied Rapid Reaction Corps welcomed local dignitaries, colleagues and families, bringing together military and civilian partners to celebrate this important occasion. The event highlighted Italy’s enduring commitment to NATO and its vital role within the Alliance.

The celebration also provided an opportunity to strengthen the close ties between the Italian contingent and the local communities, reinforcing the shared values and partnerships that underpin NATO’s collective strength.

Exercise YELLOW CROSS 26 has once again demonstrated the critical importance of Chemical, Biological, Radiological and N...
03/06/2026

Exercise YELLOW CROSS 26 has once again demonstrated the critical importance of Chemical, Biological, Radiological and Nuclear (CBRN) defence in today’s complex security environment.

Hosted in Liberec, the multinational command post exercise led by the Allied Rapid Reaction Corps (ARRC) and supported by 1 (FRA) Corps brought together Czech forces alongside personnel from across NATO.

At its core, the exercise sharpened decision-making, strengthened brigade-level staff operations, and enhanced ARRC’s ability to operate within a multinational framework. Participants trained in realistic, high-pressure scenarios, focusing on the timely assessment and sharing of CBRN information vital to effective command and control across the Alliance.

In an evolving threat environment, the ability to respond to complex CBRN incidents is essential to maintaining NATO’s operational effectiveness and protecting its forces.

Central to Yellow Cross is the enduring partnership between ARRC and the 31. pluk radiační, chemické a biologické ochrany. As a bilateral UK–CZE initiative, this relationship underpins mutual training, shared expertise, and seamless interoperability in the most demanding operational conditions.

Now in its 17th iteration, Exercise YELLOW CROSS continues to confirm the high readiness of Allied forces and the strength of NATO cooperation in CBRN defence.

Buona Festa della Repubblica, Italia!Today we celebrate Italian Republic Day with our Italian Allies.
02/06/2026

Buona Festa della Repubblica, Italia!

Today we celebrate Italian Republic Day with our Italian Allies.

Sretan vam Dan državnosti !Today we celebrate Statehood Day alongside our Croatian Allies.
01/06/2026

Sretan vam Dan državnosti !

Today we celebrate Statehood Day alongside our Croatian Allies.

Strengthening Community Ties in GloucesterYesterday, a small team from HQ Allied Rapid Reaction Corps (ARRC) proudly sup...
08/05/2026

Strengthening Community Ties in Gloucester

Yesterday, a small team from HQ Allied Rapid Reaction Corps (ARRC) proudly supported a request from the Deputy Mayor and Sheriff of Gloucester to restore the grounds surrounding a memorial bench in Oxstalls Way, Longlevens.

This activity reflects more than simple maintenance it highlights the enduring relationship between HQ ARRC and Gloucester City Council. By working together, we continue to honour our shared history, support local initiatives, and contribute positively to the community that hosts us.

Our multinational team worked alongside local partners to clear and prepare the site, ensuring it remains a fitting place of remembrance for veterans.

At HQ ARRC, we value these opportunities to engage directly with our local community, reinforcing the strong bonds between the Corps and the people of Gloucester.

https://www.facebook.com/GloucestershireCountyCouncil/?locale=en_GB

Yesterday HQ ARRC hosted Dr Rowan Williams, former Archbishop of Canterbury.Dr Williams delivered a lecture examining fa...
07/05/2026

Yesterday HQ ARRC hosted Dr Rowan Williams, former Archbishop of Canterbury.

Dr Williams delivered a lecture examining faith, authority, and the interaction between religious institutions and political power. His insights reinforced the importance of cultural and moral awareness in developing a more comprehensive understanding of adversaries and the operational environments in which they operate.

Professional military education engagements such as this strengthen our ability to think critically, operate effectively, and maintain a broader perspective across the spectrum of modern conflict.

04/05/2026

May the 4th be with you!

Happy Konings Day Netherlands! 🇳🇱Today we celebrate with our allies from the Netherlands on their National day.
27/04/2026

Happy Konings Day Netherlands! 🇳🇱

Today we celebrate with our allies from the Netherlands on their National day.

20/04/2026

🏅 What an incredible day at IMJIN CHALLENGE 26! Teams battled through a tough 4x4-mile speed march relay at Buckley Barracks, showcasing outstanding fitness, teamwork, and determination. Congratulations to all the winners across unit, team, and individual categories! A huge thank you to everyone who took part and supported the event, including our military and civilian stands, VIP lunch, and Senior Leadership Dinner. Until next year – keep training and stay strong!

The Royal Logistic Corps Corps of Royal Engineers Royal Corps of Signals Army Air Corps Defence Services Medical School 1 Military Police Brigade Royal Artillery 9 Regiment RLC

A fantastic occasion recognising the outstanding achievements of our incredible people. Lieutenant General Sir Ralph Woo...
29/03/2026

A fantastic occasion recognising the outstanding achievements of our incredible people. Lieutenant General Sir Ralph Wooddisse was proud to present a multitude of honours, including CGS and COMARRC awards, commendations, Long Service and Good Conduct as well as several operational medals.

Recognising and rewarding our brilliant people is vital to honour their dedication and inspire continued excellence across the force. Congratulations to all recipients!

Address

Imjin Barracks
Gloucester
GL31HW

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