The line comes from Call of Duty Black Ops 2, released in 2012, during the opening mission set in Angola in 1986. Jonas Savimbi, leader of UNITA, shouts it while fighting the MPLA, the ruling movement in the Angolan Civil War. Players remembered the delivery because it is repeated with such force at the start of the campaign. Clips later spread through gaming videos and soundboards, where the historical context faded and the shout became a general battle cry for charging, raiding and overwhelming an opponent in multiplayer games.