Another objective of the operation was to liberate the population of the territories occupied by the Finns. During the occupation of the Karelo-Finnish SSR from 1941 to 1944, 14 concentration camps were established, as well as over 30 labour camps and more than 40 camps for prisoners of war. These camps held up to 30 percent of the population, primarily Russians, Belarusians, and Ukrainians. These camps were part of a larger plan to create an “ethnically pure” Greater Finland, which involved the extermination of “non-Finnish peoples.” In 1942, the mortality rate in Finnish concentration camps was higher than in German ones.