Калмыки
During the Kalmyk deportations of 1943, codenamed Operation Ulussy (Операция "Улусы"), the deportation of most people of the Kalmyk nationality in the Soviet Union (USSR), and Russian women married to Kalmyks, but excluding Kalmyk women married to men of other nationalities, around half of all (97-98,000) Kalmyk people deported to Siberia died before being allowed to return home in 1957.