Diego Almagro

General Diego Almagro is a secondary antagonist in Call of Duty: Ghosts. He was the original leader of the Federation, during its formative years twelve years prior to the events of the game.

After General Almagro ordered the extermination or imprisonment of all U.S.-born individuals in territory conquered by the Federation, the Ghosts' leader Captain Gabriel Rorke convinced the U.S. leadership to send the Ghosts into Venezuela to assassinate Almagro, in the hopes that this would lead to the collapse of the Federation. The Ghosts were successful in killing Almagro, but his death failed to halt the expansion of the Federation into a global superpower.

Additionally, then-Lieutenant Elias Walker was forced to abandon Rorke during the mission, resulting in him being captured by the Federation and converted through, Amazonian torture techniques, into a Federation field commander and the most dangerous threat the Ghosts have ever faced.