He lived in the Vrystaat in South Africa, and is a proud Boer who wants to fight for equal rights for the Boer and Afrikaner people. After the conquest of SA by Indonesia and Brazil, Dennis quickly moved to the Netherlands in order to build up a temporary life there. In later life he moved back again to back to South Africa.
Dennis is an active member of United African Socialists. He founded the party Die Boere Party. He served one term as a member of Congress in Netherlands. Currently he is a member of Suid-Afrikaanse Legioen
He has achieved a military rank of captain.
Die Volksblad is the newspaper owned and published by Dennis Pretorius.