Виленский край
The entire interwar system was scrapped for the 10th anniversary of the first occupation. The new system matched that of other Soviet Republics. On July 20, 1950 Lithuanian SSR was divided into four regions (Russian: "oblast", Lithuanian: "sritis"). The regions were further subdivided into 87 districts (Russian: "raion", Lithuanian: "rajonas"): Kaunas Region with 23 districts, Klaipėda Region with 16 districts, Šiauliai Region with 24 districts, and Vilnius Region with 24 districts.