The Eraser

An ultra-secret organization that kills rouge world leaders for the United Nations hires a retired agent, Lex Dalton, code name the Eraser, for a hit in Sudan. Dalton, who has a history of being both paranoid and unpredictable, was fired ten years ago for attacking his supervisor. However, Dalton, who is half Sudanese and fluent in the language, is the only agent suited to do the job. The creditability of the world's only peacekeeping body is at stake.
The organization that serves it will do anything at any cost not to be exposed.