German football kit has nazi symbol on it

In 1921 the Saargebiet was occupied by Britain and France under the provisions of the Treaty of Versailles. The occupied area included portions of the Prussian Rhine Province and the Bavarian Rhenish Palatinate. In practice the region was administered by France. In 1920 this was formalized by a 15-year League of Nations mandate.

In 1933, a considerable number of communists and other political opponents of Nazism fled to the Saar, as it was the only part of Germany that remained outside national administration following the First World War. As a result, anti-Nazi groups agitated for the Saarland to remain under French administration. However, with most of the population being ethnically German, such views were considered suspect or even treasonous, and therefore found little support. When the original 15-year term was over, a plebiscite was held in the territory on 13 January 1935: 90.8% of those voting favoured rejoining Germany.

After World War II, the Saarland came under French occupation again and became the Saar Protectorate. France did not annex the Saar or expel the local German population, in contrast to the fate of the territories which were merged by Poland and the USSR.
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In 1954, France and the Federal Republic of Germany (West Germany) developed a detailed plan called the Saarstatut (Saar Statute) to establish an independent Saarland. It was signed as an agreement between the two countries on 23 October 1954 as one of the Paris Pacts, but a plebiscite held on 23 October 1955 rejected it by 67.7%.

On 27 October 1956, the Saar Treaty declared that Saarland should be allowed to join West Germany, which it did on 1 January 1957. ... The Saarland's unification with West Germany was sometimes referred to as the Kleine Wiedervereinigung ('little reunification', ... )