In which African country was the 2006 film 'Blood Diamond' mostly set in?

The film "Blood Diamond," released in 2006, was mostly set in Sierra Leone. The story revolves around the illegal diamond trade during the Sierra Leone Civil War in the 1990s, showcasing the brutal reality faced by the local population. The film explores themes of violence, corruption, and the illicit trade of conflict diamonds, while highlighting the devastating impact on individuals and society. Sierra Leone's history of diamond mining and its involvement in a long-standing civil war made it a fitting backdrop for this powerful and thought-provoking film.