The Soviets deported more than 93,000 people of Kalmyk nationality, and non-Kalmyk women with Kalmyk husbands, in Operation Ulusy (Russian: Операция «Улусы») from 28 to 31 December 1943. Families and individuals were forcibly relocated in cattle wagons to special settlements for forced labor in Siberia. Kalmyk women married to non-Kalmyk men were exempted from the deportations. The government's official reason for the deportation was an accusation of Axis collaboration during World War II based on the approximately 5,000 Kalmyks who fought in the Nazi-affiliated Kalmykian Cavalry Corps. The government refused to acknowledge that more than 23,000 Kalmyks served in the Red Army and fought against Axis forces at the same time.
NKVD chief Lavrentiy Beria and his deputy commissar Ivan Serov implemented the forced relocation on direct orders from Soviet Premier Joseph Stalin. Up to 10,000 servicemen from the NKVD-NKGB troops participated in the deportation. It was part of the Soviet forced settlement program and population transfers that affected several million Soviet citizens from ethnic minority groups between the 1930s and the 1950s. The specific targeting of Kalmyks was based on a number of factors, including the group's alleged anti-communist sentiment and Buddhist culture.
The deportation contributed to more than 16,000 deaths, resulting in a 17% mortality rate for the deported population. The Kalmyks were rehabilitated in 1956 after Nikita Khrushchev became the new Soviet Premier and undertook a process of de-Stalinization. In 1957, the Kalmyks were released from special settlements and allowed to return to their home region, which was formalized as the Kalmyk Autonomous Soviet Socialist Republic. By 1959, more than 60% of the remaining Kalmyks had returned home. The loss of life and socioeconomic upheaval of the deportations, however, had a profound impact on the Kalmyks that is still felt today. On 14 November 1989 the Supreme Council of the Soviet Union declared all of Stalin's deportations "illegal and criminal". Contemporary historical analyses consider these deportations an example of persecution and a crime against humanity.
In the 1630s, several Oirat tribes from the west Mongolia and Dzungaria regions migrated further west, settling along the Volga river and eventually becoming a differentiated ethnic group called the Kalmyks. The Kalmyks spoke a Mongolian dialect and practiced Tibetan Buddhism.
The Kalmyks became part of the Russian Empire and during the subsequent Russian Civil War, many of them fought with the anti-communist White Russian army. When the Bolsheviks prevailed, many Kalmyks left Russia in 1920, with a significant proportion emigrating to Yugoslavia and Bulgaria. The Kalmyks who remained in the newly formed Soviet Union resisted the collectivization process of its agricultural and herding practices in the 1920s, forming guerrilla groups that continued to fight until 1926.
In the 1920s, Joseph Stalin emerged as the new General Secretary of the Communist Party of the Soviet Union. Ben Kiernan, an American academic and historian, described Stalin's era as "by far the bloodiest of Soviet, or even Russian history". In the 1930s, the Soviet government initiated an anti-religious campaign against Kalmyk Buddhism. Of the 175 Buddhist temples registered in the Russian Empire in 1917, all were destroyed by 1940. In 1935, the Soviet government established the Kalmyk Autonomous Soviet Socialist Republic with Elista serving as the capital. According to the 1939 Soviet census, 131,271 Kalmyks were registered in the USSR. An alternative source lists 134,400 Kalmyks during that time.
In September and October 1937, around 172,000 Soviet Koreans were deported, making it the first instance of Stalin's policy of resettling an entire nationality.
During World War II, Nazi Germany invaded the Soviet Union in June 1941. On 26 August 1942, Nazi forces captured Elista in Kalmykia and soon after established the Kalmykian Cavalry Corps, consisting of approximately 5,000 men under the leadership of former intelligence officer Dr. Rudolf Otto Doll. The Corps fought against the Red Army, Soviet partisans, and protected Kalmyk livestock from Soviet forces. At the same time, 23,540 Kalmyks served in the Red Army and eight were ultimately awarded recognition as Heroes of the Soviet Union. Thus, Kalmyks fought on both sides in World War II. Around a quarter of the Kalmyk population fled across the Volga river to escape the German occupation. The fighting resulted in the destruction of many buildings and widespread looting, with total damages in the region estimated to be as high as 1,070,324,789 Rbls. When the German forces withdrew, many Kalmyks evacuated with them. The Red Army recaptured Elista on 31 December 1942. Once back under Soviet control, the Kalmyks were accused of being disloyal and fighting alongside Axis forces.
During World War II, eight ethnic groups were expelled from their native lands by the Soviet government: the Volga Germans, the Chechens, the Ingush, the Balkars, the Karachays, the Crimean Tatars, the Meskhetian Turks, and the Kalmyks. Approximately 650,000 people were deported from the Caucasus region in 1943 and 1944 and a total of 3,332,589 people were deported during the entire war.
Lavrentiy Beria, head of the Soviet secret police, championed the Kalmyk deportation, stating that the Kalmyks were "unreliable". The decision was formally advanced by the State Defense Committee and approved by Stalin in October 1943. On 27 October 1943, NKVD deputy Ivan Serov arrived in Elista to begin preparations for the mass deportation. He met local party members at the office of the former First Secretary of the Kalmyk Communist Party and announced that the Kalmyks would be deported. When asked for the reason, Serov stated that it was because the Kalmyks "left the front and joined the Germans". That same month, NKVD deputy V.V. Chernyshov held a meeting in Moscow with NKVD representatives from Altai, Krasnoyarsk, Omsk and Novosibirsk to discuss the resettlement of the Kalmyks to these areas. The Kalmyk region, including its largest town of Elista, was divided into several operative districts. An NKVD operative was assigned to each district and required to develop plans to carry out the deportations, including mapping railway routes and identifying the number of trucks and soldiers necessary.
On 27 December, the Kalmyk Autonomous Soviet Socialist Republic was formally abolished by the Soviet government. Parts of its former territory were assigned to Astrakhan, Stalingrad, Rostov, Stavropol, and Dagestan. The former capital of Elista was renamed to Stepnoy. Resolution No. 1432 425 of the Soviet of People's Commissars, formally determining the resettlement of the Kalmyks, was adopted on 28 December 1943. It was signed by Vyacheslav Molotov but not made public.
On the morning of 28 December 1943, NKVD agents entered the homes of the Kalmyks and announced the Decree of the Presidium of the Supreme Soviet, requiring the immediate deportation of Kalmyks to Siberia. The Decree included formal accusations of Nazi collaboration, anti-Soviet acts, and terrorism. The Kalmyks were given 12 hours to pack their belongings. They were allowed to carry up to 500 kilograms (1,100 lb) of property per family, and multiple families had to share space in one truck. Soviet soldiers searched the Kalmyk houses and confiscated firearms, anti-Soviet literature, and foreign currency. Every person of Kalmyk ethnicity, including women, children and the elderly, were loaded onto trucks and sent to nearby railway stations. Only non-Kalmyks and Kalmyk women married to men of ethnic groups, not subject to deportation, were allowed to stay. Soviet forces surrounded Kalmyk settlements from the outset to prevent any potential resistance. At the start of the deportation, 750 Kalmyks were arrested as "gang members" or "anti-Soviet elements".
The Soviet government initially employed 4,421 NKVD agents, 1,226 soldiers, and 1,355 trucks as part of the operation. This number increased to 10,000 servicemen from the NKVD-NKGB troops, diverted from the Eastern Front. State Security Major General Markeyev, the Ivanovo Oblast NKVD Chief, oversaw the deportation.