Ukrainian–Soviet War

• Declarations of the Central Council of Ukraine (Universals)
• Ultimatum of Sovnarkom to the Central Council of Ukraine
• Treaty of Brest-Litovsk granting status of neutrality to Ukraine as a bufferzone for the Central Powers, as well as military protection, in negotiating peace with the Bolsheviks of the Russian Soviet Federative Socialist Republic.
• Unification Act, unification of the western Ukraine
• Treaty of Warsaw, Polish-Ukrainian anti-Bolshevik pact
• Peace of Riga, splitting of Ukraine

The Bolsheviks, numbering around 30,000 and composed of Russian army regulars stationed at the front, a number of garrisoned units, and Red Guard detachments composed of laborers from Kharkov gubernia and the Donbass, began by advancing from the northeast led by Vladimir Antonov-Ovseenko and Mikhail Muravyov.[6] The Ukrainian forces at the time of the invasion consisted of about 15,000 made up from volunteer detachments and several battalions of the Free Cossacks and the Sichovi Stril'tsi.

The invasion of pro-Soviet forces from Russia was accompanied by uprisings initiated in Ukraine by the local Bolsheviks in the developed cities throughout the territory of Left-bank Ukraine as well as Right-bank Ukraine. The Bolsheviks led by Yevgenia Bosch conducted a successful uprising in Vinnytsia sometime in December 1917. They took charge of the 2nd Guard Corps and moved towards Kiev to help the Bolsheviks in the city. Pavlo Skoropadsky with a regiment of the Free Cossacks managed to stop them near Zhmerynka, disarm them, and deport them to Russia. The other Bolshevik forces captured Kharkiv (December 26), Yekaterinoslav (January 9), Aleksandrovsk (January 15), and Poltava (January 20) on their way to Kiev. On January 27, the Bolshevik army groups converged in Bakhmach and then set off under the command of Muravyov to take Kiev.[1]

The first detachment of Sich Riflemen after the capture of Kiev in January 1918.

As the Bolsheviks marched towards Kiev, a small Ukrainian National Republic unit of less than 500 schoolboys (some sources give a figure of 300[7]), commanded by Captain Ahapiy Honcharenko, was hastily organized and sent to the front on January 29, 1918 to take part in the Battle of Kruty. The small unit consisted mainly of the Student Battalion (Kurin) of Sich Riflemen, a unit of the Khmelnytsky Cadet School, and a Haidamaka detachment. About half of the 500 men were killed during the battle.

On January 29, 1918, the Kiev Arsenal January Uprising, a Bolshevik-organized armed revolt, began at the Kiev Arsenal factory. The workers of the plant were joined by the soldiers of the Ponton Battalion, the 3rd Aviation Regiment and the Sagaydachny regiment. Sensing defeat, the "Central Rada" and Petlyurist forces stormed the city on February 3.[8] After six days of battle and running low on food and ammunition, the uprising was suppressed by counter-revolutionary forces,[9] in which 300 Bolshevik workers died. According to Soviet era sources, more than 1500 pro-Soviet workers and soldiers were killed during the struggle.[10] On February 8 the Ukrainian government evacuated Kiev in order to avoid destruction by opposing Soviet troops, which then entered Kiev under Mikhail Muravyov's on February 9.

Once the Bolsheviks took Kiev, they began an offensive in Right-Bank Ukraine. However, on February 9 the UNR signed the Treaty of Brest-Litovsk and thus received aid from German and Austro-Hungarian troops in late February, over 450,000 troops.[4] In exchange for military aid, the Ukrainians were to deliver foodstuffs to the Central Powers.[4] Under the command of Symon Petlura, the combined forces pushed the Bolsheviks out of Right Bank Ukraine and retook Kiev on March 1. Because of the socialist policies of the Rada, mainly the policy of land nationalization which affected food exports to the Central Powers, on April 28 the German forces disbanded the Tsentralna Rada and installed the Hetman government in its place. Ukrainian, German, and Austro-Hungarian armies continued making gains, taking back Left Bank Ukraine, Crimea and the Donets Basin..[11] These setbacks forced the Bolsheviks to sign a peace treaty with the Ukrainian government on June 12.

On January 7, 1919 the Bolsheviks invaded Ukraine in full force[13] with an army led by Vladimir Antonov-Ovseyenko, Joseph Stalin, and Volodymyr Zatonsky.[1] The Directorate declared war once again against Russia on January 16 after several preliminary ultimatums to the Russian SFSR sovnarkom to withdraw their troops. The two main directions of the Bolshevik's forces were onto Kiev and Kharkiv.

During that time the Soviet forces were advancing across North-eastern Ukraine and occupied Rylsk and Novhorod-Siversky. On December 21 the Ukrainian Front took the important strategic railroad connection in Kupyansk. After that, a full-scale advance started between the Dnieper and Oskol Rivers. On January 3, the Red Army took Kharkiv, almost as by the same scenario when Bolsheviks had occupied Kiev in February 1918. The Ukrainian forces at that time consisted of two regular troop formations, the Zaporozhian Corps and the Sich Riflemen, as well as partisan detachments. These partisans were led by unreliable atamans which occasionally sided with the Bolsheviks, such as Zeleny, Anhel, and Hryhoryev. The army which had over 100,000 men, fell to about 25,000 due to peasants leaving the army and desertions to the Bolsheviks.[4] Bolbochan with the remnants of the Zaporizhian Corps retreated to Poltava which was holding off the Red Army for a couple of weeks more. On January 6, 1919 the government of Pyatakov officially declared the creation of the Ukrainian Socialist Soviet Republic. Yet his government continued to stay in Kursk until January 24. On January 4 the Bolsheviks Army Group Ukrainian Front was reformed into the unified Ukrainian front under the command of Antonov-Ovsiyenko with his deputies Kotsiubynsky and Schadenko. On the several inquiries about the purpose of the Russian Army in Ukraine that the Directory was sending to Moscow, Chicherin finally responded on January 6:

...there is no army of the Russian Socialist Soviet Republic in Ukraine. At this time the military action that takes place on the territory of Ukraine is between the armies of Directory and the Ukrainian Soviet Government which is completely independent.

On January 12, the troops under the command of Mykola Schors occupied Chernihiv while other units under command of Pavlo Dybenko took Lozova, Pavlohrad, Synelnykove, and established contact with Nestor Makhno. After some long discussion between the members of the Directory and other state officials, it was decided to declare War against Soviet Russia. The only person who was against it, was the chairman of the Directory Volodymyr Vynnychenko, while Shapoval, for example, for some reason was simply requesting the prompt creation of the Soviet government. Denikin later commented that the war declaration did not change absolutely anything on the frontlines and only reflected the political crisis inside the Ukrainian government with the victory of the military party of Petliura-Konovalets-Hrekov over Vynnychenko-Chekhivsky. On January 20 the Soviet Army took Poltava while the Ukrainian troops retreated further to Kremenchuk. On January 26 Dybenko took Katerynoslav. The Soviets took Left-Bank Ukraine, and then marched on to Kiev. On February 2 they forced the Directorate to move to Vinnytsia while troops of Schors and Bozhenko occupied Kiev three days later.

Then Chekhivsky resigned from office, right after Vynnychenko has created in Kamyanets-Podilsky the Committee for the salvation of Republic, which was again dissolved by Petliura on February 13. During that time the Soviet troops has acquired the rest of the Kiev Governorate while the bands of Hryhoryev took Oleksandria and Yelyzavethrad. By March 6 the Directory has relocated to Proskurov while yielding most of Polissya and Podillya to the Bolsheviks. Surprisingly, by the end of March the Ukrainian armies successfully conducted series of military operations liberating Sarny, Zhytomyr, Korosten, and threatening to take back Kiev. On March 2 Otaman Hryhoryev occupied Kherson and March 12 he was already in Mykolaiv. By April 3 the Entente forces evacuated from Odessa which Hryhoryev entered three days later.

By October 1919, about 70% of the Directorate's troops and more than 90% of the allied Ukrainian Galician Army fell to typhus.[14]

From December 6, 1919 to May 6, 1920, the UNR Army under the command of Mykhailo Omelianovych-Pavlenko carried out an underground operation known as the First Winter Campaign in the Kirovohrad region against the Soviet 14th Army. Another significant development of this period was the signing of the Treaty of Warsaw with Poland on April 22, and then beginning of a joint offensive with Polish troops against the Bolsheviks.[6] On May 7, a Ukrainian division under the command of Marko Bezruchko entered Kiev, but was quickly forced out by a Red Army counteroffensive led by Semyon Budyonny. The Ukrainians and Poles were pushed back across the Zbruch River and past Zamość toward Warsaw. The Poles signed a peace with the Soviets on October 18. By 1921, the Polish author of the Polish-Ukrainian alliance, Józef Piłsudski, was no longer the Polish head of state, and only participated as an observer during the Riga negotiations, which he called an act of cowardice.[15] Petliura's forces kept fighting.[16] They lasted until October 21, when they were forced to cross the Zbuch River and enter Polish-controlled Galicia. There they were disarmed and placed in internment camps.[1]

The last action of the UNR against the Soviets was a raid behind the Red Army lines in November 1921 known as the Second Winter Campaign.[1] This campaign was meant to incite a general uprising amongst the Ukrainian peasants, who were already disgruntled with the Soviets,[13] and to unify partisan forces against the Bolsheviks in Ukraine. The commander of the Ukrainian forces was Yurii Tiutiunnyk.

Two expeditionary forces were established, one from Podolia (400 men) and one from Volhynia (800 men). The Podolia group only made it to the village of Vakhnivka, before returning to Polish territory through Volhynia on November 29. The Volhynia group started out on November 4, captured Korosten on November 7 and made its way to the village of Leonivka. When they began to run low on supplies they decided to return. However, on its return west, it was intercepted by a Bolshevik cavalry force under the command of Grigore Kotovski at Bazar and routed in battle near Mali Mynky on November 17. 443 soldiers were captured by the Soviets during the battle. 359 were shot on November 23 near the town of Bazar, and 84 were passed on to Soviet security forces.[17]

This was the last operation of the UNR army against the Soviets. The end of the Second Winter Campaign brought the Ukrainian-Soviet war to a definite end,[1] however partisan fighting against the Bolsheviks continued until mid-1922[18] and in response the Red Army terrorized the countryside.[19]