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██ Germany
██ Latvia
██ Estonia
██ Poland (without disputed Vilnius and Suvalkai Regions)
██ Lithuania (de facto borders in 1921)
██ Socialist Soviet Republic of Byelorussia
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██ Free city of Gdańsk
██ Klaipėda Region (detached from Germany by the Treaty of Versailles)
██ Suvalkai Region (disputed between Poland and Lithuania)
██ Vilnius Region (disputed between Poland and Lithuania
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Curzon Line (December 1919) Latvian–Lithuanian–Polish – Soviet front line in January 1919 German–Soviet front line in March 1918 during World War I (at the time of the treaty of Brest-Litovsk) Border of Lithuania (1945 – present)
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Red arrows - Main directions of Soviet attacks following retreating German army
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