Paul Kagame, the Rwandan president, has criticised world powers for “abandoning” Rwanda to genocide in 1994, in which more than one million people were slaughtered.The president made his comments to nearly 20,000 people on Tuesday at a ceremony marking the the 15th anniversary of the genocide in which more than one million people died. Kagame said of those who commanded the UN forces at the time: “They left them to be murdered. Aren’t they guilty? “We are not like those who abandoned people they had come to protect. “The ceremony was held in Nyanza, a site were thousands of people were killed during the genocide, four days after an attack on UN Belgian forces there led them to withdraw. “They left even before any shot was fired. We are not cowards. They [world powers] are part of that history and the root causes of the genocide,” he said.