Did Britain deploy the Royal Marines as a second army?

Did Britain ever assemble a large Royal Marines force comparable to the United States Marine Corps in the Pacific?

Royal Marines were rarely concentrated above brigade strength; Britain normally used the Royal Navy to land the Army, although Royal Marine brigades were formed for Second World War island operations.

Britain did combine Royal Marines into larger formations, but not usually as a permanent second army. The customary model was for the Royal Navy to transport and land Army units, with Marines providing specialised naval infantry rather than the main expeditionary land force. Royal Marine brigades became more relevant when Britain considered Pacific island-hopping operations during the Second World War. The First World War's Royal Naval Division included Marines, while a Royal Marines division formed in the Second World War never fought as a complete unit. Larger British formations appeared for particular operational requirements without becoming a permanent equivalent to the United States Marine Corps.