1902 and 1917. During the 20th century, the combination or peaked cap became common in the armies, navies, air forces and police forces of the world, forgone in combat by common soldiers in favour of more protective combat helmets. During the Cold War and after dissolution of the Soviet Union, uniforms copied from the Russian pattern were issued to the armies of various Asian, Eastern European, African communist nations and post-Soviet states (except Baltic states, Azerbaijan (similar design but closely aligned with the Turkish counterparts), Georgia (after 2004) and Ukraine (after 2016)). Particularly famous are the oversized caps worn by North Korean army officers, unchanged since the 1950s. Military usage Australia In the Australian Army, the peaked cap is known as the service cap and is generally worn with the "Patrol Blues" order of dress by all ranks with the cap colour being blue. A khaki service cap could be worn previously by warrant officers, commissioned officers and officer/staff cadets with any general duty order of dress and working/protective dress until September 2010. In the Royal Australian Air Force, the peaked cap is the standard headdress for all ranks, usually worn with service dress, ceremonial dress and tropical dress among others. In the Royal Australian Navy, the peaked cap is the standard headdress worn by personnel holding the rank of petty officer and above when wearing ceremonial dress, regular day dress and informal evening dress among others. Austria Throughout the 19th century, the Austro-Hungarian Army were issued with shakos, originally in black leather and later in pike grey wool. Gradually, the height of the shako decreased and the cardboard stiffening removed until, by 1908, it had evolved into the ski cap. This was worn by Austrian officers and enlisted personnel during both World Wars, but when the postwar Austrian Bundesheer was established in 1955 an olive drab peaked cap and American style uniform were introduced. Canada The cap was used in the early stages of the First World War as the primary headgear, but increased head injuries led to its replacement by the Brodie helmet as primary combat head protection. In the Canadian Forces, the peaked cap () is the primary headgear for men's Royal Canadian Navy service dress. It has been abandoned in the Royal Canadian Air Force in favour of the wedge cap. It has also been eliminated from the Canadian Army in favour of the beret, with