The Victoria Cross (VC) is a military decoration awarded for valour "in the presence of the enemy" to members of the Australia Armed Forces. It may be awarded to a person of any rank in any service, and to civilians under military command. Being the highest award in the Australian Honours Order of Wearing, the Victoria Cross takes precedence over all other postnominals and Australian orders and decorations. The Victoria Cross was instituted by Queen Victoria in 1856, initially to reward acts of valour during the Crimean War. Because of its rarity and inherent significance, the VC is highly prized, both as an award and as a collector's item, with one medal being sold for over A$1 million at auction. Australians have received the Victoria Cross under the Imperial honours system and later under the Australian Honours System, when in 1991 a new but equivalent award was established by letters patent within the Commonwealth of Australia and its Territories, known as the Victoria Cross for Australia. The Victoria Cross for Australia has been awarded four times: twice to Special Air Service Regiment members, once to a member of the 6th Battalion, Royal Australian Regiment, and a posthumous award to a member of the 2nd Commando Regiment. All four were for actions in the War in Afghanistan.