The flag of Nazi Germany, officially called the Reich and National Flag (German: Reichs- und Nationalflagge), featured a red background with a black swastika on a white disk. This flag came into use initially as the banner of the National Socialist German Workers' Party (NSDAP), commonly known as the Nazi Party, after its foundation in 1920. Shortly after the appointment of Adolf Hitler as Chancellor in 1933, this flag was adopted as mandatory for use, while the national one was the black-white-red triband of the German Empire. One year after death of President Paul von Hindenburg, this arrangement ended. The Nazis banned usage of the imperial tricolour, labelling it as "reactionary", and made their party flag the national flag of Germany as a part of the Nuremberg Laws in 1935, which it remained until the end of World War II and the fall of the Third Reich.