International Socialist Left (Germany)

The International Socialist Left (, "isl") was a Trotskyist group in Germany. The "isl" was an organizational descendant of the International Marxist Group (GIM). It was one of two factions that form the German section of the Fourth International was affiliated with the Association for Solidarity Perspectives (VsP).
Along with co-producing the VsP's newspaper "Sozialistische Zeitung", the "isl" worked with the Revolutionary Socialist League (the other part of the German section) and groups in Austria and Switzerland to produce "Inprekorr", the German-language magazine of the Fourth International.
In December 2016, the ISL and the RSB announced that they had merged to form the new International Socialist Organisation.