JEM claim to possesses forces numbering around 35,000 and an ethnically diverse membership.[1] According to critics it is not the "rainbow of tribes" it claims to be, as most JEM members, including its leader, are from the Zaghawa tribe.[1] JEM is part of the Sudan Revolutionary Front (SRF), an alliance of groups opposed to the government in Khartoum that include the Sudan Liberation Movement(Abdul Wahed), the Sudan Liberation Movement (Minnawi), and the Sudan Liberation Movement - North.