After the dissolution of the Livonian Order in 1561, a prolonged struggle unfolded among the Tsardom of Russia, the Polish-Lithuanian Commonwealth, Sweden, and Denmark for control of Livonia. By the early 1570s, Moscow and the Commonwealth had become the principal rivals in the Baltic region.
The first years were marked by attempts at diplomatic settlement. In 1570, a three-year truce was concluded, temporarily defining spheres of influence but failing to eliminate tensions. After the death of Sigismund II Augustus (1572) and the formation of the Polish-Lithuanian Commonwealth (1569), the situation became more complex: during the interregnum, the candidacy of Ivan IV for the Polish throne was discussed, reflecting Moscow’s ambitions to influence the Commonwealth’s internal affairs.
The election of Stephen Báthory in 1576 marked the beginning of an active anti-Muscovite policy. After a brief truce in 1578, Báthory renewed the war, aiming to reclaim Polotsk and secure dominance over Livonia. In 1579, his forces captured Polotsk; in 1580, they took Velikiye Luki; and in 1581–1582, they besieged Pskov. Despite fierce fighting, the city held out, frustrating Báthory’s plans to advance toward Novgorod and compelling him to negotiate peace.
Peace talks, mediated by the papal legate Antonio Possevino, culminated in the Truce of Yam-Zapolsky (January 15, 1582). Russia renounced its claims to Livonia and returned Polotsk, Vitebsk, and Nevel, while the Commonwealth agreed to withdraw its forces from Russian territory. The ten-year truce established a temporary balance of power between the two states.
The outcome of the conflict had long-term implications. For the Commonwealth, victory strengthened its position in the Baltic region and enhanced the authority of the monarchy. For Russia, the defeat meant the loss of access to the Baltic Sea and a temporary retreat from Baltic policy. Nevertheless, the successful defense of Pskov and the preservation of key western frontiers prevented a total military disaster. The Russo-Polish rivalry for supremacy in Eastern Europe remained a central issue in international politics for decades to come.
