Within armed forces, the use of ranks is almost universal. The Chinese People's Liberation Army (1965–1988)blank">http://www.ccc.nps.navy.mil/si/aug02/eastAsia.asp, the _Albanian Army (1966–1991)blank">http://lcweb2.loc.gov/cgi-bin/query/r?frd/cstdy:@field(DOCID+al0155), and the _Soviet Red Army (1918–1935) are rare examples of armed forces which abolished rank only to re-establish them after encountering operational difficulties of command and control.