The Ottoman–Safavid War of 1603–1612 consisted of two wars between Safavid Iran under Shah Abbas I and the Ottoman Empire under Sultans Mehmed III, Ahmed I, and Mustafa I. The first war began in 1603 and ended with a Safavid victory in 1612, when they regained and reestablished their suzerainty over the Caucasus and Western Iran, which had been lost at the Treaty of Constantinople in 1590. Wikipedia