Best was at this time de facto Interior Minister of France and German national propaganda.
[3] After the start of World War II some members of the DGKS were assigned special tasks in the Abwehr and the Foreign Office, particularly in the Benelux countries, and in northern France.
One of the central figures was Ludwig Mühlhausen [de] (1888-1956), who was a specialist in Welsh, had been honorary professor of Celtic Studies at the University of Hamburg from 1928-1936, was a Nazi party member and lead the politicization of Celtic studies in Germany after taking the Berlin Chair position for Celtic studies after Julius Pokorny was expelled for his Jewish ancestry.
[5] At a Celtic congress in Wernigerode at the beginning of September 1941, Mühlhausen spoke in favor of the continuation and "use of humanities in war".
[7] While working in collaboration with the SS-Ahnenerbe the DGKS was involved in espionage, as well as sabotage and encouraging Celtic ethnic minorities towards insurrection in Brittany and the British Isles.