Reich has other uses. Please see Reich (Disambiguation) for other meanings. The Fourth Reich (Russian: Четвёртый Рейх) is a Neo-Nazi totalitarian regime within the post-apocalyptic Moscow Metro. As with most factions in the Metro universe, the Fourth Reich did not appear spontaneously but evolved from an existing group - most likely radicals in the Central Metro Command or surviving Russian Neo-Nazi groups, such as Russian National Unity. The Nazis are a national socialist faction in the Metro

Paul Lehr (1930-1998), Mobilization of The Fourth Reich, 1997

The final book in the series finds British Major Edgar and the Soviets' Viktor Krasotkin – adversaries of old – drawn to 1970s Berlin and into an unlikely alliance as they confront Nazi war criminals and a plot, hatched in 1945, to launch the Fourth Reich.