The Dallaire cable and Rwanda's ignored warning
In January 1994, UNAMIR commander Roméo Dallaire cabled UN peacekeeping headquarters, then headed by Annan, that an informant had revealed plans to register and exterminate Tutsi and to hide weapons caches. He asked for permission to raid them. Headquarters told him to stay within his mandate and share the information with President Habyarimana instead. Three months later the genocide killed roughly 800,000 people, and Annan later accepted that the Secretariat and he personally could and should have done more.