<P>This crucial period in Russia''s history has, up until now, been neglected by historians, but here Brian L. Davies'' study provides an essential insight into the emergence of Russia as a great power.</P><P>For nearly three centuries, Russia vied with the Crimean Khanate, the Polish-Lithuanian Commonwealth and the Ottoman Empire for mastery of the Ukraine and the fertile steppes above the Black Sea, a region of great strategic and economic importance ¿ arguably the pivot of Eurasia at the time.</P><P>The long campaign took a great toll upon Russia''s population, economy and institutions, and repeatedly frustrated or redefined Russian military and diplomatic projects in the West. </P><P>The struggle was every bit as important as Russia''s wars in northern and central Europe for driving the Russian state-building process, forcing military reform and shaping Russia''s visions of Empire. </P>