There seems to be constant confusion as to whether or not there should be a terminal 's' in the titles of the Corps and its units. Perhaps a brief explanation will help. Just after the Second World War ended, in order to establish uniformity in the titles of RM units, an order was published in November 1945 stating that the words 'Royal Marines' were to be placed after the designation of a unit. Thus 40 Royal Marine Commando became 40 Commando Royal Marines and the Royal Marine Infantry Training Centre was to be known as the Infantry Training Centre Royal Marines. Between 1942 and 1945 the titles of RM Commandos were often written as 40 (Royal Marine) Commando or 40 (RM) Commando. The woven RM Commando shoulder title has always been 'ROYAL MARINES COMMANDO', because originally the title '4 'COMMANDO' was an additional straight Cash's tape sewn immediately below the existing straight shoulder title ROYAL MARINES, while above was a matching woven unit numeral. When a complete curved woven title was later produced, it was natural that it should read 'ROYAL MARINES COMMANDO'. The exception to this was '46' who had their own curved title 46 ROYAL MARINE COMMANDO, manufactured complete with numeral. In 1951 a Royal Marines Routine Order directed that in future the adjective "Royal Marines' would be used instead of 'Royal Marine'. This meant that whereas some who had been Royal Marine officers and used to live in a Royal Marine Barracks then became Royal Marines officers and lived in a Royal Marines Barracks. Many of those serving at the time found this new nomenclature difficult to accept, and in fact some never have! It is grammatically incorrect, but nevertheless a common error, to use 'RMs'.