During World War I the region was under the control of French troops. With the Bucharest Concession in 1913, the southern part of the lakes went to Greece, and in 1924 the current borders were agreed. After the German Occupation in the 1940s and throughout the Greek Civil War, Prespes was controlled by the rebels of the Democratic Army along with the Communist Party of Greece. After the end of the Greek Civil War (1946-1949) and the defeat of the the Democratic Army, numerous villages were abandoned (Daseri, Kranies, Agathoto, Pyxos, Sfika), while many residents left the region as political refugees. In the early 1950s (1952-53), Vlach farmers from Epirus, Macedonia and Thessaly settled in Prespa, boosting the population of the district until nowadays.