Star of David Badge This badge - also known as Jewish Badge, Yellow Badge or Yellow Patch was worn on a concentration camp uniform. The yellow badge that was compulsory in the Middle Ages was revived by the German Nazis after the invasion of Poland in 1939. The requirement to wear the Star of David with the word Jude (German for Jew) inscribed was then extended to all Jews over the age of six in the Reich by a decree issued in 1941. Holocaust. Poland. 1941