Habonim Dror (, "the builders–freedom") is the evolution of two Jewish Labour Zionist youth movements that merged in 1982. Habonim (, "the builders") was founded in 1929 in the United Kingdom and over a period of years, spread to all English-speaking countries. Each country developed its own independent version of the original movement whilst sharing the core ideology of being a Jewish Zionist-socialist cultural youth movement. Dror (, "freedom") was founded in Poland in 1915 out of a wing of the Tze'irei Tziyon (Zion Youth) study circle. The majority of Tze'irei Tziyon had merged with a group called Hashomer in 1913 to form Hashomer Hatzair, and those who remained outside of the new group formed Dror. The group was influenced by the teachings of the Russian Narodniks. Members of Dror participated in the Warsaw Ghetto uprising. Mordechaj Tenenbaum and other Dror members organised two underground factions in the Bialystok Ghetto. Dror was aligned with the HaKibbutz Hameuhad network, while Habonim was aligned with the Ichud kibbutzim. When the two kibbutz movements merged in 1980 to form the United Kibbutz Movement (TaKa"M), so did their respective youth movements. Ideology Habonim Dror is a Jewish cultural youth movement, which exists to connect young Jews via Jewish culture, both within Israel and in the Jewish Diaspora. One of the central ideas is that of tikkun olam, a Hebrew phrase that means "mending the world" which originated in the early rabbinic period of Judaism. The Movement ideology falls into different categories. They are Judaism and Chalutziut (Pioneering), specifically Aliyah (moving to Israel, and more specifically to Kibbutz), collective action and mutual support that falls under the rubric of socialist ideology, and AliHagshama Atzmit (Self-realisation). These categories are not independent ideologies, each element integrates with others others. Every chaver(a) (member) tends to embody the spirit of Habonim Dror and the underlying idea of mutual acceptance and support for one another through good works, based on their shared experiences and values gained in the movement. Habonim Dror's ideology is an attempt to represent this forward direction. The expression of these ideals involves gatherings and activities that include scouting, camping, hiking, as well as the education of the geography and history of Eretz Yisrael (the land of Israel). Jewish history is given attention, as are songs and dances taken from the pioneer days of the present State. Socialist ideals are expresed through interest in kibbutz and "irbutz"