The Anarchist Black Cross (ABC), formerly the Anarchist Red Cross, is an anarchist support organization. The group is notable for its efforts at providing prisoners with political literature, but it also organizes material and legal support for class struggle prisoners worldwide. It commonly contrasts itself with Amnesty International, which is concerned mainly with prisoners of conscience and refuses to defend those accused of encouraging violence. The ABC openly supports those who have committed illegal activity in furtherance of revolutionary aims that anarchists accept as legitimate.