but other uniforms include khaki button-up shirts, forest-green coats, and combat camouflage. In other services where camouflage is normally a non-issue, such as navies, coloured uniforms are still issued, e.g. the United States Navy's white officer uniform for warm weather. The United States Armed Forces allows every branch to develop and use their own uniforms. In recent years, many Battle Dress Uniforms with famous US Woodland pattern were replaced. The marine Corps developed new digital MARPAT pattern, while the United States Army developed Universal Pattern (ACU) for its standard combat uniforms, though a special camouflage pattern (multicam) more appropriate for use in Afghanistan was fielded in 2010. Popular disdain among US troops for the beret headgear as part of the "default" headgear for wear with the ACU uniform led to a regulation revision in 2011, with the standard "default" headgear for wear with ACUs now being the ACU patrol cap, which provides a much better degree of sun protection for the eyes). The U.S. Army has since developed the OCP uniform (starting in 2016), going back to a green camo pattern, with coyote brown undershirts, boots, and belt. The U.S. Army is still in transition between the old ACU pattern and the new OCP pattern. The U.S. Military uses different camo patterns when deployed in different combat zones (in theater). U.S. Army mostly uses the Multi-Cam pattern in Iraq and Afghanistan, but is subject to change due to the new OCP uniform being issued. Based on recommendations made during a comprehensive briefing by Task Force Uniform on 24 Feb. 2006, CNO Michael G. Mullen agreed to production of both a BDU-style working uniform for all Sailors E-1 to O-10 and a more practical, year-round service uniform to withstand day-to-day classroom and office-like environments where the service uniform is typically worn. The new Navy Working Uniform (NWU) is now worn by naval sailors and officers. On 6 June 2006 the US Army announced that its green and white uniforms would be superseded by the Army Blue Uniform as a universal service uniform in the historic colours of dark blue (for tunics) and light blue (for trousers). The new service dress was introduced in 2007 and became obligatory for all ranks by 2011. As of 1 April 2021, the Air Force makes use of the Operational Camouflage Pattern (OCP) as a common daily uniform. This is the same uniform worn by the