The Crimean War props up the 'sick man of Europe'
Russia's push to protect Ottoman Christians draws Britain and France into a war fought largely over one Black Sea fortress.
Quick facts
- War
- Crimean War, 1853-1856
- Allies of the Ottomans
- Britain, France, Sardinia-Piedmont
- Treaty
- Treaty of Paris, 30 March 1856
- Phrase coined
- "The sick man of Europe" (Tsar Nicholas I)
What happened
Tsar Nicholas I of Russia, who had described the Ottoman Empire as the sick man of Europe in conversations with British and Austrian diplomats, demanded protective rights over the Ottoman Empire's Orthodox Christian subjects and occupied the Ottoman principalities of Moldavia and Wallachia in 1853. The Ottoman Empire declared war on Russia in October 1853, and Britain and France entered the war the following year to prevent Russian expansion at Ottoman expense, landing forces in the Crimea and besieging the Russian naval base at Sevastopol. The war ended with the Treaty of Paris, signed on 30 March 1856, which barred Russian warships from the Black Sea and granted the Ottomans' Christian subjects a degree of official equality.
Why it matters
The war demonstrated that European powers would fight to prop up Ottoman territorial integrity against Russian expansion rather than let the empire collapse outright, a policy driven by the balance of power rather than sympathy for Ottoman rule. It also exposed how dependent the empire had become on European military and financial support, a dependency that deepened over the following decades as Ottoman debt to European creditors grew.
How we know
The UK's National Army Museum describes the British and French motivation as propping up the Ottoman Empire against Russian expansion, and the strategic focus of the campaign on Sevastopol after Russia withdrew from the Danubian principalities under Austrian pressure.
Sources
- National Army Museum (UK). Crimean War · Reputable sourcenam.ac.uk · The domain "nam.ac.uk" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
- World History Encyclopedia. Ottoman Empire · Reputable sourceworldhistory.org · The domain "worldhistory.org" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
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