WSoviet Union in World War IIWA-A lineWBackground of the occupation of the Baltic statesWGerman–Soviet Axis talksWGerman–Soviet Commercial Agreement (1940)WInterim PeaceWKatyn massacreWSoviet occupation of the Baltic states (1940)WOccupation of the Baltic statesWOccupation of the Latvian Republic DayWSoviet submarine S-2WSoviet occupation of Bessarabia and Northern BukovinaWSoviet occupation of Latvia in 1940WSoviet ultimatum to LithuaniaWWinter War