Tutsi

Rwandan troops are currently in DR Congo in support of the M23, which is led by ethnic Tutsis who say they took arms to protect the rights of the minority group.

The fighters are led by ethnic Tutsis who say they took up arms to protect the rights of the minority group - and because the Congolese authorities reneged on an earlier peace deal.

They claim they are revolutionaries battling a failed state, and defending the rights of minority Tutsis.

The countries share a similar language and ethnic make-up - with Tutsi and Hutu communities often vying for power - and both have suffered terrible ethnic-based massacres.

The M23 says it is fighting to achieve better rights for the Tutsis, an ethnic minority group in DR Congo, and to bring order to a failed state.