Denis Sassou-Nguesso vs Joachim Yhombi-Opango

Denis Sassou-Nguesso, a military officer, became President of the People's Republic of the Congo after a coup that ousted President Joachim Yhombi-Opango. He led the Congolese Party of Labour (PCT).

Under pressure, Sassou-Nguesso's government introduced multi-party politics, ending the one-party Marxist-Leninist system. A national conference was held in 1991, leading to a transition to civilian rule.

Sassou-Nguesso lost the 1992 presidential election to Pascal Lissouba. This was the first multi-party election in the country since independence, and Sassou-Nguesso peacefully handed over power.

Sassou-Nguesso's militia, backed by Angolan troops, captured Brazzaville, overthrowing President Pascal Lissouba. This ended a four-month civil war and returned Sassou-Nguesso to the presidency.

Sassou-Nguesso won the 2002 presidential election with over 89% of the vote. The election was boycotted by major opposition candidates and criticized as neither free nor fair.

Sassou-Nguesso's government held a constitutional referendum that removed the age limit and two-term limit for the presidency. The change allowed him to run for re-election in 2016 and potentially remain in power.

Yhombi-Opango succeeded Marien Ngouabi as president after Ngouabi's assassination. He led the Congolese Party of Labour and ruled until 1979.

Yhombi-Opango was forced to resign by the Central Committee of the Congolese Party of Labour, which accused him of mismanagement and corruption. He was succeeded by Denis Sassou-Nguesso.

Yhombi-Opango was appointed Prime Minister by President Pascal Lissouba during the civil war. His tenure was marked by conflict and instability.