President Donald Trump pledged to “confront anti-Semitism” and defend the United States’ alliance with Israel in a speech Tuesday marking the U.S. Holocaust Memorial Museum’s National Days of Remembrance.

The president spoke Tuesday as part of the museum’s unveiling of its new conservation and research centre, home to a vast collection of artefacts donated by those who survived Hitler’s massacre of Jews during World War II.

“The Holocaust was the state-sponsored, systematic persecution and attempted annihilation of European Jewry by the Nazi regime and its collaborators. By the end of World War II, six million Jews had been brutally slaughtered,” said Trump.

“We support the Jewish Diaspora and the State of Israel as we fulfil our duty to remember the victims, honour their memory and their lives, and celebrate humanity’s victory over tyranny and evil,” the statement continued.

“During this week in 1945, American and Allied forces liberated the concentration camp at Dachau and other Nazi death camps, laying bare to the world the unconscionable horror of the Holocaust. We must remain vigilant against hateful ideologies and indifference…Every generation must learn and apply the lessons of the Holocaust so that such horror, atrocity, and genocide never again occur.”