- HQ ARRC, as a High Readiness Force (Land) HQ, is prepared to deploy on short notice to conduct combined and joint operations as a corps HQ, land component command HQ, or theatre-level joint task force HQ.
- It has experience commanding operations in Bosnia, Kosovo, Afghanistan, and with the NATO Response Force.
- It consists of personnel from many NATO nations, led by the UK, and is able to deploy a force of up to 786 personnel within 5 days of notification.