Complex sentence: After the fall of Noli's regime (December 1924) he emigrated to Italy, thereafter to Austria and then to the Soviet Union where he joined the Albanian communist group affiliated to the Balkan Confederation of Communist Parties belonging to the Communist International.
Split into simpler sentences: After the fall of Noli's regime (December 1924) he emigrated to Italy, thereafter to Austria and then to the Soviet Union. There he joined the Albanian communist group affiliated to the Balkan Confederation of Communist Parties belonging to the Communist International.