. . . "The Friedrich Engels Guards Regiment (also known as NPA Guard Regiment 1) was a special guard unit of the East German National People's Army (NPA). The regiment was named after Friedrich Engels, the German socialist that collaborated with Karl Marx in systematizing Marxism."@en . . "Friedrich Engels Guard Regiment"@en . "The Friedrich Engels Guards Regiment (also known as NPA Guard Regiment 1) was a special guard unit of the East German National People's Army (NPA). The regiment was named after Friedrich Engels, the German socialist that collaborated with Karl Marx in systematizing Marxism."@en .