Pereyaslav Agreement system of 1654

Timeline

1. 1654Pereyaslav · Kyiv OblastBohdan Khmelnytsky presided over the Cossack Rada, where Cossack officers swore allegiance to Tsar Alexei Mikhailovich; Russian envoy Vasily Buturlin accepted the oath on behalf of the tsar, marking the formal conclusion of the agreement.
2. 1654Moscow · MoscowCossack envoys traveled to Moscow to negotiate with the tsar's government, signing the March Articles (Березневі статті), which detailed the Hetmanate's autonomy, the size of the Cossack register (60,000 men), and Russia's right to station troops in Ukraine.
3. 1654–1667Eastern European theater · Eastern EuropeThe signing of the agreement directly led Russia to declare war on the Polish-Lithuanian Commonwealth. Russian forces quickly captured key cities such as Smolensk and Vilnius. This protracted war lasted thirteen years, intertwined with the Russo-Swedish War, and ultimately ended with the Treaty of Andrusovo dividing Left-Bank and Right-Bank Ukraine.
4. 1667Andrusovo · Smolensk OblastRussia and the Polish-Lithuanian Commonwealth signed the Treaty of Andrusovo, confirming Russia's retention of Left-Bank Ukraine and Smolensk, Poland's recovery of Right-Bank Ukraine, and Kyiv's temporary transfer to Russia for two years (in fact kept permanently). The political order established by the 1654 agreement system was thereby formally internationalized.