Såg en intressant sida i ämnet. http://www.massviolence.org/The-NKVD-Ma ... 7?cs=print
"The "National Operations" targeted a number of diaspora minorities, suspected of being "a hotbed of spies and wreckers". On July 25, 1937, Nikolai Ezhov sent to all regional NKVD headquarters Order n° 00439 prescribing the immediate arrest of all German citizens employed (or having been employed) in defense factories, on the railroads and in "other sectors of the national economy". But "Germans" were not the main target: Order n° 00449 prescribed the arrest of all Soviet citizens "having, or having had, ties", in one way or another, with "German spies, wreckers and terrorists"."
"August 11, 1937, following a Politburo top-secret resolution taken two days earlier, Nikolai Ezhov issued another secret directive, Order n° 00485, aimed at "the complete liquidation of local branches of the Polish Military Organization (POW) and its networks of spies, wreckers and terrorists in industry, transport and agriculture". Order n° 00485 identified targets for arrest: all Polish political émigrés and refugees, as well as "the most active part of local anti-Soviet nationalist elements from the Polish national districts". A month later, this category was extended to all "Soviet citizens of Polish nationality with ties to Polish consulates""
"Order n° 00485 served as a model for a series of similar NKVD secret decrees targeting a number of the Soviet Union’s diaspora nationalities: the Finnish, Latvian, Estonian, Rumanian, Greek, and Chinese."
"In early 1935, the Soviet regime launched a number of deportations aimed at "cleansing" the most strategic border regions (the region of Leningrad and the Soviet-Polish border) of their "ethnically suspect elements". Over 8000 families of Polish and German origin were deported in February-March 1935 from the border districts of Kiev and Vinnitsa provinces to eastern Ukraine; at the same time, 12,000 Finns, Estonians and Latvians were deported from the border districts of Leningrad province to Siberia and Central Asia. The cleansing operations in border areas were continued and expanded in 1936, encompassing 20,000 families from the Leningrad region and Western Ukraine."
"The National Operations were not a minor part of the Great Terror. According to centralized NKVD statistics, from July 1937 to November 1938, 335,513 persons were sentenced by extrajudicial organs in the course of the implementation of the National Operations (while over 800,000 persons were convicted in the so-called Kulak Operation carried out under Order n° 00447). Among them, 247,157 (or 73.6%) were shot – a proportion considerably higher than in the Kulak Operation, in the process of which 49.3% were sentenced "in the first category" (death sentence)"