Beginning about a year into the Crimean War (1853-6), the Battle of Balaclava is perhaps the best known engagement of the war. Its outcome was indecisive; it did not end the siege of Sevastopol, but neither were the Allied losses so great as to constitute a major defeat.
But in its very unimportance, it became something else. An inspiration and a beacon of courage and chivalry. For this one bloody day of fighting saw the famous charge of the Light Brigade, immortalised in poetry by Kipling and Tennyson. As such, its effect on British morale helped that nation and its allies hang on until victory was achieved. (Ironically, the legendary charge was an error resulting from a misinterpreted order.)