A year later, in 1601, Chodkiewicz accompanied Zamoyski north, to the Duchy of Livonia (Inflanty), where he commanded Lithuanian units on the right wing of the Commonwealth army in a victorious battle of Kokenhausen in late July that year in the war against Sweden. He oversaw the fighting in the Livonia theater after Zamoyski's return to Poland in 1602. In April 1603, he captured Dorpat (modern Tartu) and defeated the Swedish forces at Biały Kamień (the Battle of Weissenstein) on 23 September 1604. His crowning achievement was the great victory near the Dvina River in the Battle of Kircholm (modern Salaspils) on 27 September 1605, when, with barely 4000 troops, mostly the heavy cavalry of Polish hussars, he annihilated a Swedish army three times the size of his force. For that feat he received letters of congratulation from Pope Paul V, most of the Catholic royalty of Europe, and even the sultan of Turkey and the shah of Persia. Soon afterward, he was rewarded with the rank of Grand Lithuanian Hetman, in addition to a number of royal land grants and leases.