1998 Guinea-Bissau coup attempt
The 1998 Guinea-Bissau coup attempt was the attempted military overthrow in Guinea-Bissau by dissident elements within the military against the João Bernardo Vieira government. Led by Brigadier-General Ansumane Mané, the coup attempt plunged the republic into the year-long Guinea-Bissau civil war, resulting in as many as thousands of deaths and the displacement of hundreds of thousands.
Source: Wikipedia — 1998 Guinea-Bissau coup attempt (CC BY-SA 4.0)