The case for a British joint expeditionary headquarters

Does the United Kingdom have a suitable divisional headquarters for light and amphibious formations?

No suitable standing structure is identified; the proposed answer is a joint expeditionary headquarters instead of an improvised or borrowed command.

The conversation recalls how Britain had to assemble a divisional headquarters rapidly during the Falklands War. Simply attaching 3 Commando Brigade and 16 Air Assault Brigade to an existing Army formation would not supply the specialist command culture they need. The proposed solution is a standing joint Royal Navy, Army, and RAF expeditionary headquarters led by a rotating two-star officer. A later exchange about armies returning from brigade-centric structures to divisions reinforces why command above brigade level remains operationally important.