During the period from Peter I to Catherine II, Russia was transformed from a medieval kingdom into a modern European empire. Peter I initiated reforms like instituting a tax on beards and building a Russian navy. He also fought wars to increase Russia's territory and prestige. His successors like Anna and Elizabeth continued westernizing Russia and expanding its global influence through warfare. By Catherine II's rule, Russia had grown to its greatest size yet while its culture was largely westernized, though this change came at the cost of increased suffering for Russian peasants.