Kalmyk deportations of 1943 originally nomadic shepherds of Dzungaria. They speak a West Mongolian language, an Altaic language. They practice Lamaism, a form of Buddhism practiced also in Tibet. In the 1630s, several Oirat tribes migrated westwards and settled along the Volga river. They were consolidated into a new ethnic group, the Kalmyks. While a part of their group went back to Dzungaria, others stayed and recognized the authority of the Russian Empire by the 18th century. During the Russian Civil War, a majority of Kalmyks actively participated in anti-communist Russian armies. When the Bolsheviks ultimately took power, numerous anti-communist people emigrated from Russia
Southern, Eastern and Northern Buddhism provides additional evidence that the form of Buddhism practiced in the "Northern" territories likely retains many non-Mahayana influences. Furthermore, in certain regions of China and East Asia (notably in Southern China), non-Mahayana forms were sometimes dominant. Vietnam represents an interesting case of a country lying in the liminal region between the Northern and Southern Buddhist schools. As might be expected, Vietnamese Buddhism shows both a strong Mahayana and Theravada influence. Southern, Eastern and Northern Buddhism "Southern Buddhism", "Eastern Buddhism" and "Northern Buddhism" are geographical terms sometimes used to describe the styles of Buddhism practiced in Asia. "Southern Buddhism" represents Buddhism