The Headquarters Allied Command Europe Rapid Reaction Corps, (HQ ARRC or ARRC) was created in
1992 in
Bielefeld based on the former
British I Corps (or I (BR) Corps ). It was originally created as the rapid reaction corps sized land force of the Reaction Forces Concept that emerged after the end of the Cold War, with a mission to redeploy and reinforce within Allied Command Europe (ACE) and to conduct Petersberg missions out of NATO territory.
See more at Wikipedia.org...