Answer:
Austria, Prussia, Russia and Great Britain were the main enemies of Napoleon and belonged to the many coalitions formed to fight France.
Why? The rival European powers fought France together in order to keep or restore a balance of power and prevent French hegemony in Europe. Keeping the balance of power in Europe always occupied a central place in British foreign policy. Until 1814, the emperor of France managed to defeat his enemies thanks to his great military talent and a powerful and competent army. However, there were periods of peace and even alliance with France for Russia and Austria - Napoleon married an Austrian princess to have an heir and guarantee peace with Vienna. Peace with Russia ended after Napoleon invaded Russia in 1812 following the Russian breaking away from the French-orchestrated continental trade blockade against English products.
Other French enemies were Portugal and Belgium. Though Spain was an ally, the Spanish people hated and fought French occupation. But the most fervent and uncompromising enemy of the French emperor was always Great Britain.
After the disastrous 1812 Russian expedition that saw La Grande Armée of Napoleon decimated, his power and his grip of Europe serioulsy weakened. His enemies made another coalition and defeated his armies , arriving in Paris to force his abdication. He briefly returned in 1815, but he suffered a final defeat at Waterloo at the hands of the brilliant British commander Arthur Wellington.
Step-by-step explanation: