The document discusses the Rwandan genocide of 1994, where Hutu extremists killed 800,000 Tutsi and moderate Hutus over the span of 100 days. It notes that the UN and other international organizations failed to intervene to stop the genocide despite being aware it was occurring. The ongoing conflict in Syria is presented as a modern example of genocide that the UN continues to fail to prevent or stop. Preventing future genocides would require recognizing them as such, establishing procedures to protect civilians, and ensuring perpetrators are punished to deter future crimes.