[2] After the war Braunthal served as an Assistant Secretary of State for the newly established Republic of Austria from 1918 to 1920.
From 1927 to 1934 he served as editor of the popular socialist newspaper, Das Kleine Blatt (German: The Little Leaf), also published by the SPÖ.
[5] He was ultimately expelled from the country in 1935, narrowly escaping the annexation of Austria to Nazi Germany three years later.
[5] In 1938, Braunthal went into exile in Great Britain, where his elder sister Bertha Clark (1887-1967) had been living and working with her Scottish born husband since 1933,[6] and where he would remain for the rest of his life.
[2] Julius Braunthal was named an assistant secretary of the Labour and Socialist International in 1938, remaining in that capacity until the outbreak of World War II.