Soviet westward offensive of 1918–1919
invasion of Eastern Europe by the Russian SFSR (1918-19)
The Soviet westward offensive of 1918–1919 was part of the campaign by Soviet Russia into areas abandoned by the Ober Ost garrisons that were being withdrawn to Germany following that country's defeat in World War I. The initially successful offensive against the Republic of Estonia ignited the Estonian War of Independence which ended with the Soviet recognition of Estonia. Similarly, the campaigns against the Republic of Latvia and Republic of Lithuania ultimately failed, resulting in the Latvian–Soviet Peace Treaty and Soviet–Lithuanian Peace Treaty respectively. In Belarus, the Belarusian People's Republic was conquered and the Socialist Soviet Republic of Byelorussia proclaimed.
The campaign eventually became bogged down, leading to the Estonian Pskov Offensive, the White Russian Petrograd Offensives, the Lithuanian–Soviet War, the Latvian War of Independence and the continuation of the Ukrainian–Soviet War.
Soviet war aims
The newly formed Red Army was growing in personnel, and Vladimir Lenin could gather enough strength to replace withdrawing Western curtain forces ("Западная завеса") by solid military and re-take the lands lost by Russia in 1917 by simply following the withdrawing German army. Upon receiving the news about the German Revolution, on November 13, 1918, the Soviet government annulled the Treaty of Brest-Litovsk and issued orders to the Red Army to move in the direction of Belarus, Ukraine and the Baltic States in order to establish Soviet governments there. The newly formed (on November 16) Western Army moved at night of November 17, 1918, into the operational vacuum created by the withdrawing Imperial German Army.
Background
After signing the Treaty of Brest-Litovsk, Bolshevik Russia lost the European lands the Russian Empire had annexed in the 18th and 19th centuries. Most of today's Poland, Belarus, Ukraine and the Baltic states were granted to the government of Germany, which in turn decided to grant these states limited independence as buffer states. However, the German defeat on the Western Front and the internal dissolution of Austria-Hungary made the plans for the creation of Mitteleuropa obsolete.
This brief starts where responsible research should: with the source description of “Soviet westward offensive of 1918–1919” as invasion of Eastern Europe by the Russian SFSR (1918-19). Everything that follows is an evidence route, not borrowed authority.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 25, 2026. The linked authority identifier is Q3089540. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1918, 1919 and 1917.
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