After the Greco-Turkish War of 1919–1922, the city entered a new era of prosperity because of the labor offered by the thousands of refugees that moved to the area from Asia Minor. The development was both industrial and agricultural. Kavala became greatly involved and developed further in the processing and trading of tobacco. Many buildings related to the storage and processing of tobacco from that era are preserved in the city. During the Interwar period and the Second Hellenic Republic, Kavala was the 4th largest city in Greece (after Athens, Thessaloniki, and Patras). In 1934 Dimitrios Partsalidis was elected mayor of Kavala, the first communist mayor in modern Greek history. The city gained temporarily by the Press, the nickname "Little Moscow".