An anachronous map of countries (using present-day borders) that have been ruled by a <a href="https://en.wikipedia.org/wiki/en:One-party_state" class="extiw" title="w:en:One-party state">one-party</a> <a href="https://en.wikipedia.org/wiki/en:Marxism-Leninism" class="extiw" title="w:en:Marxism-Leninism">Marxist-Leninist</a> state at some point in their history.
By the time of the 1979-1983 <a href="https://en.wikipedia.org/wiki/en:People%27s_Revolutionary_Government" class="extiw" title="w:en:People's Revolutionary Government">Communist Grenada</a>, all the colored nations above were simultaneously Communist-controlled.
<a href="//commons.wikimedia.org/wiki/File:BlankMap-World-1985.png" title="File:BlankMap-World-1985.png">File:BlankMap-World-1985.png</a>