Holy Alliance

Proposed by Tsar Alexander I of Russia and signed on 26 September 1815 by Russia, Austria, and Prussia, the Holy Alliance pledged its signatories to govern according to Christian principles of charity, peace, and justice — in practice a conservative covenant to suppress liberal and nationalist movements across Europe. Britain's Foreign Secretary Castlereagh privately dismissed it as a piece of 'sublime mysticism and nonsense,' while Metternich regarded it as a useful ideological cover for the reactionary order he was constructing. The Alliance became the ideological foundation of the post-Napoleonic conservative order, giving the Metternich System its moral vocabulary.

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