Hapoel Hatzair
In March 1920, at a congress in Prague, the World Union of Hapoel Hatzair and Zeirei Zion formed Hitahdut Olamit (known as Hitahdut). In 1926, at its Berlin third congress, its name was changed to the World Zionist Labour Party Hitahdut. Its youth movement was named Gordonia, after A. D. Gordon. In 1932, it merged with Poale Zion to create Ihud Olami, the World Union of Zionists-Socialists.