Australia's Federation Guard

Australia's Federation Guard (AFG) is a tri-service ceremonial unit made up of members from the Royal Australian Navy, Australian Army, and Royal Australian Air Force. Formed in 2000, for the centenary celebrations of the Federation of Australia, it is the first purely ceremonial unit in the history of the Australian armed forces, and has since represented Australia in various roles both at home and around the world, including providing the Queen's Guard at Buckingham Palace in 2000.

Source: Wikipedia — Australia's Federation Guard (CC BY-SA 4.0)