The Victoria Cross (VC) is the highest and most prestigious decoration of the British honours system. It is awarded for valour "in the presence of the enemy" to members of the British Armed Forces and may be awarded posthumously. It was previously awarded by countries of the Commonwealth of Nations, most of which have established their own honours systems and no longer recommend British honours. It may be awarded to a person of any military rank in any service and to civilians under military command. No civilian has received the award since 1879. Since the first awards were presented by Queen Victoria in 1857, two thirds of all awards have been personally presented by the British monarch. The investitures are usually held at Buckingham Palace.

The siege of Sevastopol lasted from October 1854 until September 1855, during the Crimean War. The allies landed at Eupatoria on 14 September 1854, intending to make a triumphal march to Sevastopol, the capital of the Crimea, with 50,000 men. Major battles along the way were Alma, Balaklava, Inkerman, Tchernaya, Redan, and, finally, Malakoff. During the siege, the allied navy undertook six bombardments of the capital, on 17 October 1854; and on 9 April, 6 June, 17 June, 17 August, and 5 September 1855.