This picture shows their swastika flags and the huge contingent of people supporting them. It looks like a show of strength preceding the World War II. This particular rally is said to have also celebrated the decrease of unemployment in Germany since the rise to power of the Nazi regime.
History and purpose
The first Nazi Party rallies took place in 1923 in Munich, and in 1926 in Weimar. From 1927 on, they took place exclusively in Nuremberg. The Party selected Nuremberg for pragmatic reasons: it lay in the center of the German Reich and the local Luitpoldhain was well suited as a venue.
In addition, the Nazis could rely on the well-organized local branch of the party in Franconia, then led by Gauleiter Julius Streicher. The Nuremberg police were sympathetic to the event.
Later, the location was justified by the Nazi Party by putting it into the tradition of the Imperial Diet (German Reichstag) of the Holy Roman Empire, considered as the First Reich. After 1933, the rallies took place near the time of the Autumn equinox, under the title of "National Congress of the Party of the German People" (Reichsparteitage des deutschen Volkes), which was intended to symbolize the solidarity between the German people and the Nazi Party.
This point was further emphasized by the yearly growing number of participants, which finally reached over half a million from all sections of the party, the army and the state.