During World War I, he served as a commando soldier and later as a pilot and an aerial photographer in the Imperial German Army.
[2][3] He studied at the Academy of Fine Arts, Munich and between 1919 and 1920 at the Bauhaus school in Weimar with Lyonel Feininger and Johannes Itten.
[5] In 1934, he left Germany because of the Nazi regime and started living in Kibbutz Yagur in Israel, where he changed his first name to Ari.
[circular reference][6] His son, Gotthard, better known under the adopted name Uziel Gal, was the designer of the Uzi submachine gun.
Ari Glas died in Haifa in 1973, leaving behind a large selection of his works: paintings, photographs, engravings and prints.