CSU meaning in International ?

The Christian Social Union in Bavaria (Christlich-Soziale Union in Bayern , CSU) is a Christian-democratic and conservative political party in Germany. Having a regionalist identity, the CSU operates only in Bavaria while its larger counterpart, the Christian Democratic Union (CDU), operates in the other fifteen states of Germany. It differs from the CDU by being somewhat more conservative in social matters, following the Catholic social teaching. The CSU is considered the de facto successor of the Weimar-era Catholic Bavarian People's Party.

At the federal level, the CSU forms a common faction in the Bundestag with the CDU which is frequently referred to as the Union Faction (die Unionsfraktion) or simply CDU/CSU. The CSU has had 46 seats in the Bundestag since the 2017 federal election, making it currently the smallest of the seven parties represented. The CSU is a member of the European People's Party and the International Democrat Union.

The CSU currently has three ministers in the cabinet of Germany of the federal government in Berlin, including former party leader Horst Seehofer who is Federal Minister of the Interior while party leader Markus Söder serves as Minister-President of Bavaria, a position that CSU representatives have held from 1946 to 1954 and again since 1957.