 The Census also recorded that virtually all can speak Vietnamese.Most Vietnamese people in Russia have backgrounds as workers and political students being sent by North Vietnam during the Soviet Union, although the first Vietnamese immigrants happened to be the early students-turned war soldiers serving the Soviet Army during the World War II, and are petty entrepreneurs in the retail industry; with Russia's 2007 reform of rules for retail markets, which put restrictions on the proportion of immigrant-owned shops and require Russian-language proficiency examinations as a condition of being granted a work permit and a business licence, many Vietnamese will have to close their businesses and find other lines of work, probably as manual labourers.Students also form another important group; Ho Chi Minh himself studied in Moscow in the 1920s, along with other senior members of the Communist Party of Vietnam.