“Peter the Great and the Northern War,” in Dominic Lieven, ed., The Cambridge History of Russia.vol. 2 (2006)
From the end of the fifteenth century to Peter’s time the main preoccupation of Russian foreign policy was the competition with Poland-Lithuania for territory and power on the East European plain. Peter’s new war was also a surprise because Russian foreign policy after 1667 had been preoccupied with the Ottoman Empire and its Crimean vassal. In Peter’s time, from the 1670s to 1719, the population grew from some 11 million to about 15.5 million. Russia’s foreign trade grew throughout the century, primarily through Archangel. The final war of Peter’s life was in a totally different direction, and seems to have been entirely commercial in inspiration. Peter’s dreams and Russia’s new position demanded not only a better army and navy, it demanded a new diplomatic corps. Russian culture changed rapidly after about 1650, with knowledge of Polish and Latin spreading among the elite and much geographic knowledge in translation as well.