More member nations would join later throughout the decade, including Argentina, Australia, Chile, Ireland, Iran, India, South Africa, Korea, Japan, Peru, and Ukraine.
Following Rockwell's assassination in 1967, control of the WUNS passed to Matt Koehl, who attempted to extend the influence of the group by appointing Danish neo-Nazi Povl Riis-Knudsen as general secretary.
However a split began to develop over the insistence of Koehl that Nazism should also serve as a religion, and eventually he broke away from the WUNS to lead his own version of Nazi mysticism.
In Canada, the group was represented by the Canadian Nazi Party, whose leader William John Beattie was chief of the WUNS in the country.
[3] It was also active in South America through the Partido Nacionalsocialista Obrero Chileno, a group set up in Chile by Franz Pfeiffer.