"Crimean War, (October 1853–February 1856), war fought mainly on the Crimean Peninsula between the Russians and the British, French, and Ottoman Turkish, with support from January 1855 by the army of Sardinia-Piedmont. The war arose from the conflict of great powers in the Middle East and was more directly caused by Russian demands to exercise protection over the Orthodox subjects of the Ottoman sultan. Another major factor was the dispute between Russia and France over the privileges of the Russian Orthodox and Roman Catholic churches in the holy places in Palestine…"
More on the Crimean War from Encyclopedia Britannica here…
