Гадячский договор
Bohdanovych-Zarudny played key roles in the Treaty of Pereyaslav (Pereiaslav Treaty) of 1654 which began when he conducted negotiations in Warsaw in 1650, and subsequently headed the Kozak delegations to Moscow (1652 and again in 1654) and Turkey (1653). In 1657 Bohdanovych-Zarudny traveled to Transylvania to once again initiate negotiations towards another treaty. This eventually led to the 1658 signing, with Poland, of the Treaty of Hadiach (Hadiache).