Genocides may be grouped into two broad categories: economic and political. In the Darfur region of Sudan, the Government of Sudan responded to an insurgency by mobilizing forces known to Darfurians and many in the international community as the Janjaweed and by “overlooking minor offences by the mujahedeen against civilians who suspected members of the rebellion”. China and France exported small arms, ammunition, and machetes to the Rwandan army and militias in the months leading up to the anti-Tutsi genocide. The Soviet Union was even more culpable in genocidal conflicts during the Cold War. The opportunity to punish the perpetrators of the Ottoman Christian genocide, along with the Germans who armed the Ottoman war machine, was allowed to slip away after World War one. Reservations to the Genocide Convention represent a formidable challenge to efforts to enforce international law against complicity in, conspiracy to aid, or attempt to commit genocide.