Khmer Rouge unrecognized government
The Provisional Government of National Union and National Salvation of Cambodia (PGNUNSC) was an internationally unrecognised and ostensibly provisional government set up by the Khmer Rouge on July 11, 1994, in opposition to the established Kingdom of Cambodia. == History == PGNUNSC's Prime Minister was Khieu Samphan (who was also head of the armed forces) and its Deputy Prime Minister (in charge also of foreign affairs) was Son Sen.
Source: Wikipedia — Khmer Rouge unrecognized government (CC BY-SA 4.0)