Reichskommissariat Ostland
On June 22, 1941, Nazi Germany invaded the Soviet Union. Following the German occupation, Soviet stamps were overprinted "Nepriklausoma Lietuva 1941-VI-23" (Independent Lithuania 1941-VI-23) in 1941. Lithuania became part of the Reichskommissariat Ostland, the German occupation administration. Stamps were issued for use in the Reichskommissariat Ostland by overprinting "Ostland" on stamps of Germany.