It was founded by Yoweri Museveni and was a left-wing splinter group from the Uganda People's Congress (UPC).
[1] The UPM participated in the December 1980 general elections, which were won by Milton Obote's UPC.
The election results were disputed, leading Museveni to form the National Resistance Movement and its military wing, the National Resistance Army, with which he waged a guerrilla rebellion against Obote's government, beginning the Ugandan Bush War.
The NRM has been the country's ruling party after its victory from 1986 up to date.
The current leadership of the UPM is not publicly known since the electoral commission keeps that data confidential.