Complex sentence: He returned to Libya and worked there as a secretary of the Benghazi Council, but the Italian Fascists excluded him, so he migrated to Turkey in 1934, before he came back, as an exile from Italians in 1936.
Split into simpler sentences: He returned to Libya, and he worked there as a secretary of the Benghazi Council. But the Italian Fascists excluded him, thus he immigrated to Turkey in 1934, before he came back to it, as an exiled from Italians in 1936.