The Second Republic of the Congo Civil War begins.

The Second Republic of the Congo Civil War was the second of two ethnopolitical civil conflicts in the Republic of the Congo, beginning on 5 June 1997 and continuing until 29 December 1999. The war served as the continuation of the civil war of 1993–94 and involved militias representing three political candidates. The conflict ended following the intervention of the Angolan army, which reinstated former president Denis Sassou Nguesso to power.