Koryo saram, or koreans of the former soviet union: in the past and present german n. kim. 500,000 koreans who live in soviet union 2/3 kazakhstan and uzvekistan, 1/3 russia. This is due to the repression of the stalinist era and migration within the soviet union. After the japanese annexation, korean felt that they would be safer if they go to russia. Repression form japanese occupation of korea pushed many people to emigrate from korea to. Tolerance of russian authorities to korean immigration. Called koryo saram/ choson saram, but the last 10 years first term used. Koreans number about 35,000 people, and they range from first to third generation: soviet koreans former citizens of the dprk who came to the soviet union for university studies or contract work and did not return home. Although small in number, this group is easily distinguished because they speak korean as their mother tongue. Began in the late 1860s continued through the mid-1920s.