"""He also served in the Israel Defense Forces in the a Bnei Akiva gar'in in the Nahal. In 1952 he became a member of Bnei Akiva's National Directorate, and from 1955 until 1956 he served as an emissary of the organisation to the United States.
In 1964 he founded the Ohr Etzion B'nei Akiva Yeshiva Highschool, where he remains Rosh Yeshiva. In 1977 he established the Ohr Etzion Yeshiva, which for many years was the largest Hesder Yeshiva in the country, and in 1995 founded the Ohr MeOfir academy for highschool graduates of the Ethiopian community. Since 1996 he has also been the head of the Center for Bnei Akiva Yeshivot and ulpanot in Israel.
He played a leading role in the establishment of Gush Emunim.""""""