Collar Badge - Royal Marines Badge: The Royal Marine Globe and Laurel without the crown and lion. The Corps of Royal Marines (RM) is the United Kingdom's amphibious light infantry force, forming part of the Naval Service, along with the Royal Navy. The Royal Marines were formed in 1755 as the Royal Navy's infantry troops. However the marines can trace their origins back to the formation of "the Duke of York and Albany's maritime regiment of Foot" at the grounds of the Honourable Artillery Company on 28 October 1664.