Which of the f following was a major reform implemented by Peter the Great in Russio? He abolished serfdom He promoted Isolationism He modernized the Russian military He established a parliamentary system

Peter the Great is best known for modernizing the Russian military. This was a major reform he implemented as part of his broader efforts to modernize and westernize Russia during his reign. He reorganized the army, built a strong navy, and introduced new military technologies and tactics, which significantly strengthened Russia's military capabilities.