President Trump marked the Week of Remembrance with a speech at the U.S. Holocaust Memorial Museum’s commemoration event Tuesday. Watch the event in its entirety in the video player above.

On Monday, the president released a proclamation asking the American people to observe the Week of Remembrance with “appropriate study, prayers and commemoration, and to honor the memory of the victims of the Holocaust and Nazi persecution by internalizing the lessons of this atrocity so that it is never repeated.”