The Nduma Defense of Congo ( or NDC, also known as Mai-Mai Sheka) is a militia that operates in the eastern Democratic Republic of the Congo as part of the Kivu conflict. Mai-Mai groups are militia unique to the eastern DRC, formed ostensibly to defend villages from attacks from Rwandan forces and Rwandan-backed rebel groups. However, Mai-Mai groups have been accused of sexual violence, looting, and fighting all sides including fellow militias, the DRC Army, and the United Nations.