The Ossewabrandwag (OB) (Afrikaans: Ossewabrandwag, from Afrikaans: ossewa, lit. 'ox-wagon' and Afrikaans: brandwag, lit. 'guard, picket, sentinel, sentry' - Ox-wagon Sentinel) was an anti-British and pro-German organisation in South Africa during World War II, which opposed South African participation in the war. Pro-German Afrikaners formed the Ossewabrandwag in Bloemfontein on 4 February 1939.