A secret 1815 alliance was formed to stop the rise of new superpowers
In the wake of Napoleon's defeat, three former rivals met in the shadows to sign a clandestine pact, fearing that their own allies were becoming the world's next great threats.
In January 1815, the Congress of Vienna was meant to restore peace to Europe, but tensions boiled over when Russia and Prussia demanded massive territorial gains. Fearing a new era of dominance, Austria, Britain, and France signed a secret treaty to defend one another by force if necessary.
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