The war that France and Britain fought against Russia was called the .?

The war that France and Britain fought against Russia was called the Crimean War, which occurred from 1853 to 1856. The conflict primarily arose over territorial disputes and the decline of the Ottoman Empire, with significant battles taking place in Crimea. The war is notable for its impact on military strategy and medicine, as well as the famous Charge of the Light Brigade. It ultimately ended with the Treaty of Paris in 1856.