It was also widely infamous under the name Svensk socialistisk samling (SSS, 'Swedish Socialist Gathering'), which was generally among the public called Lindholmarna (lit.

They used to provoke political opponents in Sweden, sabotaging legal speeches and demonstrations held by other parties, and spread Nazi and Fascist flyers and posters and similar activities.

By the end, of the year the party had changed its name to Svensk Socialistisk Samling (Swedish Socialist Gathering) and had largely dropped all but passing reference to the German Nazis.

[15] It was discovered some years after WWII, when incomplete lists from the SSS/NSAP containing the names of nearly one thousand Jews was found, that the party had hoped for, and planned well for, a Nazi German invasion of Sweden.

The party would, in case of such an invasion, first have strived to set up a "Swedish Quisling puppet regime" (an idea that has been compared to i.e the Norwegian one under Nasjonal Samling) with Lindholm as leader.