Although a flag representing Islam as a whole does not exist, some Islamic denominational branches and Sufi brotherhoods employ flags to symbolize themselves. Among specific Islamic branches, Nizari branch of Ismaili-Shia Islam employs an official flag made of green which represents Muhammad's standard and Ali's cloak, as well as a red stripe meaning blood and fire. The flag was ordained by the Aga Khan IV as a part of the new constitution in 1986.