The UAP split from the German Social Union of Otto Strasser in 1962 under the district leader of the Arnsberg section of the DSU, Erhard Kliese.

The UAP started as the "Socialist Workers-Centralist-Faction" under Erhard Kliese, district leader of the Arnsberg section, within the German Social Union.

The UAP viewed itself as a nationalist and socialist workers' party and based its program primarily on the brothers Otto and Gregor Strasser.

It saw itself as the only German party to stand in the tradition of Ferdinand Lassalle and Kurt Schumacher who it claimed were national revolutionaries.

Directly translated, these points are as follows:[6][8] The UAP's youth wing was the Blue Eagle-Youth (German: Blaue Adler-Jugend), abbreviation: BAJ, founded on the 10th December 1967 in Hattingen.