Bolivia’s transition to a democratic government began in 1978 when then military dictator Hugo Banzer Suarez stepped down after international and internal pressure for Bolivia to hold democratic elections. While the Democratic Popular Union (Unidad Democratica y Popular, UDP), led by Hernan Siles Zuazo, won the 1978 elections, Juan Pereda Asbum, Banzer’s chosen successor, launched a military coup and declared the elections invalid.
The 1977-1978 economic justice and human rights campaign in Bolivia stemmed from tensions that began with the 1952 Bolivian Revolution, which left the Nationalist Revolutionary Movement in power. This group implemented a nationalization of the tin mines, agrarian reforms, and universal franchises. These policies and reforms lasted until 1964, when a military coup led to the regime of General Barrientos. This regime clashed with miners and broke down worker power and cultivated the peasantry.