Russian resources were too scarce for France’s sustainable occupation; no substantial long-term geopolitical changes are likely even with initial military triumphs.

This might result in prolonged French hegemony in Europe, possibly preventing both German unification under Prussian leadership and the emergence of Britain as a solitary great power.

A successful invasion of Russia does not alter British control over the seas, which ultimately determines long-term geopolitical dominance anyhow.

French rule would collapse due to widespread nationalist movements inspired by Enlightenment ideals throughout Europe regardless of Russian success.