If
the Muscovite Czars, who worked their encroachments by the agency principally of the Tartar Khans, were obliged toNeither
the Sea of Azof, nor the Black Sea, nor the Caspian Sea, could open to Peter this direct passage to Europe. Besides, during his lifetime still Taganrog, Azof, the Black Sea, with its new-formed Russian fleets, ports, and dockyards, were again abandoned or given up to the Turk. The Persian conquest, too, proved a premature enterprise. Of the four wars which fill the military life of Peter the Great, his first war, that against Turkey, the fruits of which were lost in a second Turkish war, continued in one respect the traditionary struggle with the Tartars. In another respect, it was but the prelude to the war against Sweden, of which the second Turkish war forms an episode and the Persian war an .epilogue. Thus the war against Sweden lasting during 21 years, almost absorbs the military life of Peter the Great. Whether we consider its purpose, its results, or its endurance, we may justly call it