Finnish Karelia, Salla, and Petsamo were territories ceded to the former Soviet Union after the Continuation War (1941-44). Counterjihadist Perussuomalaiset (PS) MP Olli Immonen sent a parliamentary question Friday asking the government to investigate whether Russia offered in 1991 then President Mauno Koivisto (1982-94) the possibility to buy back the ceded region. Koivisto, who was…