The narrative centers on the lives of five aristocratic families in Russia during the Napoleonic Wars, tracking their personal transformations amidst the upheaval of French invasion. The protagonist figures, including Pierre Bezukhov, Prince Andrei Bolkonsky, and Natasha Rostova, navigate the rigid social hierarchies and moral dilemmas of 19th-century society. They are opposed by the chaotic, unpredictable forces of history and the physical destruction wrought by the conflict. The narrative framework utilizes a third-person omniscient perspective, frequently pausing the plot to provide philosophical essays on the nature of historical causality and free will.

Readers and critics frequently highlight the immense scale of the work, noting that it successfully balances intimate character studies with broad historical analysis. Discussion often centers on the effectiveness of the philosophical digressions, which some find essential to the text's purpose while others view them as interruptions to the narrative flow. The pacing is described as deliberate, reflecting the slow accumulation of historical change rather than rapid action. Many emphasize the depth of the character development, particularly the psychological growth of the central figures as they confront mortality and social change. The work remains a primary subject of study for its complex structure and its attempt to synthesize individual experience with the movement of history.