Obama spoke last evening at the Israeli Embassy in Washington, the first sitting President to speak at the embassy.

He was introduced at the event by Steven Spielberg, the Oscar-winning director of the Holocaust film 'Schindler's List' and the founder of a Holocaust history foundation.

The United Nations has designated yesterday as International Holocaust Remembrance Day to commemorate the anniversary of the liberation of the Auschwitz death camp in 1945.

Six million Jews were killed by Nazis and their collaborators during the Holocaust.

Obama said the Holocaust is unique, "a crime without parallel in history," but he also sought to extend his concerns about confronting intolerance toward other faiths as well.

Latest News from World News Desk