Just before war was declared, Peter Fleming, then a reserve officer in the Grenadier Guards, was recruited by the War Office research section investigating the potential of irregular warfare (MIR). His initial task was to develop ideas to assist the Chinese guerrillas fighting the Japanese. He served in the Norwegian campaign with the prototype commando units – Independent Companies – but in May 1940 he was tasked with research into the potential use of the new Local Defence Volunteers (later the Home Guard) as guerrilla troops. His ideas were first incorporated into General Thorne's XII Corps Observation Unit, forerunner of the GHQ Auxiliary Units. Fleming recruited his brother, Richard, then serving in the Faroe Islands, to provide a core of Lovat Scout instructors to his teams of LDV volunteers.