"War and Peace" by Leo Tolstoy is a novel that follows the lives of several aristocratic families in Russia during the Napoleonic Wars. The story primarily focuses on the experiences of Pierre Bezukhov, Andrey Bolkonsky, and Natasha Rostova as they navigate love, war, personal growth, and the changing social landscape. The narrative spans from the early 19th century to the aftermath of the French invasion of Russia, highlighting the impact of historical events on personal lives and the broader societal changes.