Comprehensive Study Guide: The National Liberation War of the Ukrainian People ($$1648-1657$$)

Background of Bohdan-Zynovyi Khmelnytsky ($1595-1657$)

Bohdan-Zynovyi Khmelnytsky was born in $1595$ and died in $1657$. His father served as a sotnyk (centurion) of the Chyhyryn regiment. Khmelnytsky received a comprehensive education, studying first in a monastery in Kyiv and later at a Jesuit collegium in Lviv. Throughout his career, he participated in numerous military campaigns and wars. His family estate was the khutir (farmstead) of Subotiv.

Causes of the National Liberation War

The causes of the war are categorized into three main areas of oppression. The first is Socio-economic oppression, characterized by the expansion of landownership by Polish magnates and gentry (shliahta) within Ukraine, the enserfment of peasants, and the subsequent growth of the corve (panschynna) system. This period saw the systematic oppression of both the Cossack and townspeople (mishchanstvo) classes. The second area is National oppression, which included the legal and political inequality of the Ukrainian Orthodox gentry and their marginalization by Polish elites. Ukrainians faced severe restrictions when attempting to hold government offices or participate in city self-governance organs, leading to widespread discrimination against townspeople, peasants, and the Orthodox clergy. The third area is Religious oppression, involving the forced imposition of Catholicism and Uniatism. The rights and freedoms of the Orthodox Church were under constant attack, coupled with the forced Catholicization of the population and the implementation of mandatory taxes to support the Catholic and Uniate churches.

The Pretext for War: Conflict with Daniel Czaplinski

The immediate pretext for the conflict involved a personal tragedy for Khmelnytsky. His wife, Hanna Somko, became terminally ill and was near death. During this time, Khmelnytsky was in love with a servant named Motrona and had promised to marry her after his wife's passing. However, Daniel Czaplinski, a Polish nobleman, was also in love with Motrona. In an act of aggression, Czaplinski attacked Khmelnytsky's khutir (Subotiv), plundered it, killed Khmelnytsky’s son, and kidnapped Motrona. Motrona subsequently converted to Catholicism, took the name Helvena (Helena), and became Czaplinski’s wife. Despite Khmelnytsky's legal efforts, the court ruled in favor of Czaplinski, leaving Khmelnytsky seeking justice through other means.

The Outbreak of War and Early Organization (January $1648$)

In January $1648$, Khmelnytsky escaped from prison and, with a small detachment of Cossacks, traveled to the Zaporozhian Sich. He successfully captured the Sich and was elected Hetman. To prepare for the conflict, he addressed the critical shortage of Cossack cavalry by forming an alliance with the Crimean Khanate, which also helped avoid unexpected attacks from Crimean hordes during the war with Poland. The driving forces of the movement included Cossacks, peasants, townspeople, clergy, and the petty Ukrainian gentry. Khmelnytsky was joined by key associates such as Ivan Bohun, Maksym Pushkar, Martyn Nebaba, Ivan Zolotarenko, and Maksym Kryvonis.

Major Military Engagements of $1648-1649$

The war saw a series of significant battles. On May $5-6$, $1648$, the Battle of Zhovti Vody resulted in the defeat of the Polish army commanded by Stefan Potocki. Shortly after, on May $16$, $1648$, the Battle of Korsun saw a victory by a Cossack force of $20\,000$ over Polish forces led by M. Potocki and M. Kalinovsky. By the end of the summer, the Left Bank and nearly all of the Right Bank of Ukraine were liberated. From September $11-13$, $1648$, the Battle of Pyliavtsi occurred, resulting in the rout of Polish forces led by V. Zaslavsky, M. Ostroha, and A. Koniecpolski. This event is described as the ‘most shameful defeat of the Polish-Lithuanian Commonwealth’ and opened the path to Galicia.

The Siege of Lviv and the Zboriv Treaty ($1649$)

In the autumn of $1648$, the Cossack forces besieged Lviv and Zamostia. In December $1648$, Khmelnytsky made a triumphant entry into Kyiv. The following year, in the summer of $1649$, the siege of Zbarazh took place. This led to the Battle of Zboriv in August $1649$, where Khmelnytsky secured a victory over the Poles, resulting in the Treaty of Zboriv. Under this treaty, the Hetmanate was recognized as the territory of three voyevodships: Kyiv, Bratslav, and Chernihiv. The Cossack registry was set at $40\,000$, and Polish nobles were required to leave their estates within those three voyevodships.

State Structure of the Zaporozhian Host and the Events of $1651$

The newly formed state was officially named the Zaporozhian Host (Viysko Zaporozke), with its capital located in the city of Chyhyryn. The highest legislative body was the Starshynska Rada (Officers' Council), while executive and judicial power resided with the Hetman. The general starshyna (General Staff), including the General Scribe, General Quartermaster, two General Adjutants (osavul), and two General Judges, managed internal and external policy. Administratively, the state was divided into regiments (polky) and companies (sotni). In $1651$, the Battle of Berestechko occurred; it was the first major defeat for the Ukrainians, primarily due to the betrayal of the Tatars. Because Khmelnytsky attempted to stop the retreat of the Khan's troops, he could not lead the Cossack army during the battle. Ivan Bohun was elected as the acting (nakaznyi) hetman and managed to lead a significant portion of the troops out of the encirclement. This led to the Treaty of Bila Tserkva on September $18$, $1651$, which significantly reduced the Hetmanate to only the Kyiv voyevodship, lowered the registry to $20\,000$, allowed Poles to return to their estates in the Bratslav and Chernihiv voyevodships, and prohibited any foreign relations, including those with the Crimean Khanate.

Resumption of Hostilities and the Moldavian Campaigns ($1650-1653$)

On May $22-23$, $1652$, the Ukrainian army achieved a brilliant victory over the Polish army at Mount Batih in the Bratslav region, serving as revenge for Berestechko. Consequently, the Treaty of Bila Tserkva lost its force, and the borders were restored to those defined by the Zboriv Peace. In the autumn of $1653$, the Ukrainian army surrounded Polish forces at Zhvanets, but they were once again saved by a Tatar betrayal, as the Tatars concluded the Treaty of Kamianets with Poland. During this period, Khmelnytsky also conducted Moldavian campaigns to find allies. In the first campaign ($1650$), Tymish Khmelnytsky agreed to marry Rosanda, the daughter of Vasyl Lupu. The wedding took place after the Battle of Batih in $1652$ during the second campaign, though Lupu was soon deprived of his throne by Wallachians and Transylvanians. In the third campaign ($1653$), Tymish restored Lupu to power but was besieged in the city of Suczawa, where he was killed.

The Pereyaslav Council and the March Articles ($1654$)

In late $1653$, Moscow agreed to accept the Zaporozhian Host and begin a war with Poland. On January $8$, $1654$, the Pereyaslav Council took place, attended by approximately $200$ representatives of the starshyna and Cossacks. An alliance with Moscow was decided upon, and $284$ people took the oath that day. This agreement was formalized in the ‘March Articles’ ($1654$), establishing a Protectorate—defined as a form of dependence of one state on another where the protector regulates key socio-political issues. The articles specified the Hetmanate's territory (Kyiv, Chernihiv, and Bratslav voyevodships), a registry of $60\,000$ Cossacks, an oath to the Moscow Tsar, and joint military actions against Poland.

The Truce of Vilna ($1656$) and the End of the Khmelnytsky Era

While the $1654$ treaty was initially an equal and mutually beneficial confederation, the situation changed in $1656$ with the Truce of Vilna between Moscow and Poland, which violated the Ukrainian-Moscow alliance. Under the truce, hostilities between Poland and Moscow ceased, and both agreed not to negotiate peace with Sweden, planning joint actions against them instead. Furthermore, the Russian Tsar was to be elected to the Polish throne. The Ukrainian delegation was excluded from these negotiations, and Khmelnytsky's proposals were ignored, deeply offending the Cossacks and the Hetman. In response, Khmelnytsky signed an agreement in $1656$ with Sweden, Transylvania, and Wallachia, sending Cossack regiments under Anton Zhdanovych to assist them, though the campaign was unsuccessful. Bohdan Khmelnytsky died in the summer of $1657$.

Socio-Economic Consequences of the War

The war brought profound socio-economic shifts. It resulted in the elimination of large and medium landownership, the manorial-serf system of farming (filvarkovo-panshchynna), and serfdom itself. New forms of land ownership emerged: Cossack, peasant, and state-owned land. The social structure was transformed by ‘pokozachennia’—the mass transition of peasants and townspeople into the Cossack estate, which became the leading social class. The status of townspeople improved as foreign dominance was eliminated, and national-religious obstacles to business, trade, and self-governance were removed.

Chronological Timeline of the National Liberation War

The major milestones of the war include: the Battles of Zhovti Vody, Korsun, and Pyliavtsi in $1648$; the Battle of Zboriv and the resulting Zboriv Treaty in $1649$; the Battle of Berestechko and the Treaty of Bila Tserkva in $1651$; the Battle of Batih in $1652$; the Siege of Zhvanets and the Treaty of Kamianets in $1653$; the Pereyaslav Council and the March Articles in $1654$; and the Truce of Vilna in $1656$.