Multiple United States presidents, including Jimmy Carter in 1979, Ronald Reagan in 1984, George H. W. Bush in 1991, Bill Clinton in 1993, and Barack Obama in 2011, have promised that the Holocaust would not happen again, and that action would be forthcoming to stop genocide. However, genocide occurred during their presidencies: Cambodia in Carter's case, Anfal genocide during Reagan's presidency, Bosnia for Bush and Clinton, Rwanda under Clinton, and Yazidi genocide for Obama. Elie Wiesel wrote that if "never again" were upheld "there would be no Cambodia, and no Rwanda and no Darfur and no Bosnia." Totten argued that the phrase would only recover its gravitas if "no one but those who are truly serious about preventing another Holocaust" invoked it.