The Mongolian People's Republic (MPR) was the Mongolian communist state that existed from 1924 to 1992 that self-designated first as a people's democratic state and later as a socialist state. The Mongolian People's Revolutionary Party was enshrined as the leading force of state and society; it occupied the historical region of Outer Mongolia. Geographically positioned between the Soviet Union and China, the MPR became the world's second communist state. It was the
first Soviet satellite state, and remained so for its entire existence, longer than any other Soviet satellite. It is the predecessor of the modern state of Mongolia.