The Thirteen Years' War allowed the Russian Tsardom to regain territories lost during the Time of Troubles
The Russo-Polish War of 1654-1667 or the “Thirteen Years’ War” was a major conflict between the Russian kingdom and the Polish-Lithuanian Commonwealth, during which Moscow managed to regain the territories lost during the “Time of Troubles”, as well as protect the Orthodox population of Left Bank Ukraine, which after the “Pereyaslav” glad" in 1654 came under the protectorate of Russia. The war began in the summer of 1654, when Tsar Alexei Mikhailovich, taking advantage of the weakening of the Polish-Lithuanian Commonwealth, sent a 41-strong army on a campaign.
The initial successes of the Russian troops were impressive: in 1654 Smolensk was taken, and in 1655 a significant part of Belarus and Lithuania came under the control of the Russian kingdom. These victories were due to the fact that the Polish-Lithuanian Commonwealth was in a state of internal crisis and could not organize effective resistance.
At the same time, Sweden intervened in the conflict in 1656, occupying part of Poland. After this, Moscow signed the "Truce of Vilna" with the Poles, and Russian troops marched into Swedish Livonia and besieged Riga in the Russo-Swedish War (1656-1658), the theater of the Second Northern War.
In turn, after the death of Bohdan Khmelnytsky, who swore allegiance to the Russian kingdom, the new hetman Ivan Vygovsky entered into an alliance with Poland in September 1658, creating the Grand Duchy of Ruthenia.
In July 1659, Vygovsky and his Crimean Tatar allies inflicted a heavy defeat on Trubetskoy's army and then besieged Konotop. However, as a result of an internal coup, the Zaporozhye Cossacks were led by the son of Bogdan Khmelnitsky, Yuri, who again concluded an agreement with Moscow.
At the same time, by 1660, the Polish-Lithuanian Commonwealth was able to partially restore its strength and organized a successful counter-offensive, forcing Russian troops to retreat from some previously occupied territories. Tatar raids and Polish counterattacks put Russian forces in a difficult position.
Meanwhile, by 1664, Russia was able to stabilize the front and repel Polish advances, and in 1667 the “Peace of Andrusov” was concluded. According to this agreement, Moscow received Smolensk, Left Bank Ukraine and Kyiv. The war ended with the strengthening of the positions of the Russian kingdom, despite significant losses and exhaustion on both sides.
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