Prisoner of war the custody of a person, then the responsibility was on the individual. The freeing of prisoners was highly recommended as a charitable act. The 1648 Peace of Westphalia, which ended the Thirty Years' War, established the rule that prisoners of war should be released without ransom at the end of hostilities and that they should be allowed to return to their homelands. There also evolved the right of "parole", French for "discourse", in which a captured officer surrendered his sword and gave his word as a gentleman in exchange for privileges. If he swore not to escape, he could gain
Treaty of Bakhchisarai fish in the Dnieper and its tributaries; to obtain salt in the south; and to sail on the Dnieper and the Black Sea. The sultan then recognized Muscovy's sovereignty in the Left-bank Ukraine region and the Zaporozhian Cossack domain, while the southern part of the Kiev region, the Bratslav region, and Podolia were left under Ottoman control. Despite the treaty, Russia joined a European coalition against the Ottoman Empire in 1686. Treaty of Bakhchisarai The Treaty of Bakhchisarai (; ) was signed in Bakhchisaray, which ended the Russo-Turkish War (1676–1681), on 3 January 1681 by Russia, the Ottoman Empire, and