The genocide in Darfur, Sudan began in 2003 and involved government-backed militias killing and displacing non-Arab Sudanese. Over 400,000 people have been killed according to some estimates. The Janjaweed militias, composed of Arabized Africans, are known for rape, torture, and forcing people from their homes. International response has been limited despite this being considered one of the worst humanitarian crises in the world. Several actors and activists work to prevent genocide through organizations like the Genocide Intervention Network. Peace talks and US involvement have failed to end the ongoing conflict and killing.