Several top world leaders addressed the Fifth World Holocaust Forum at Yad Vashem in Jerusalem on Thursday in an event that commemorates 75 years since the 1945 liberation of the Auschwitz-Birkenau concentration camp in Nazi-occupied Poland.

Speaking at the Jan. 23 ceremony held at Yad Vashem were the leaders of the four Allied powers — U.S. Vice President Mike Pence, Russian President Vladimir Putin of Russia, Britain’s Prince Charles and French President Emmanuel Macron — as well as Germany’s President Frank-Walter Steinmeier.

In his remarks, Putin said his country mourns “all the victims of the Nazis, including 6 million Jews,” and that the death camps were “not just operated by Nazis, but by their henchmen in various countries,” in an apparent swipe at Poland and other eastern European nations. Polish President Andrzej Duda canceled his attendance at the commemoration after he was denied being able to speak at the event.

The Russian leader also said that the Soviet Union “paid the highest price, more than any other” during World War II, with 27 million killed, calling it the “price of victory.”

Putin also claimed that 40 percent of the Jewish Holocaust victims were Soviet citizens, a figure disputed by historians.

“We need to find the courage not just to speak about antisemitism, but also to do everything in our power to protect Jews,” he said.

‘A dark stain on human history’

Speaking after Putin, Pence cited President Donald Trump’s words, calling the Holocaust a “dark stain on human history.”

“Today, we remember what happens when the powerless cry for help and the powerful refuse to answer,” he said.

The vice president also recalled his visit to Auschwitz last year, saying that one cannot visit the site “without becoming over with emotion and grief.”

“One cannot see the piles of shoes, the gas chambers, the crematoriums, the lone box car facing the gates of the camp … without asking, ‘How could they?’ ” he said.

Pence also called on the world to unite against growing antisemitism, and notably called out Iran for its Holocaust denial and threats to wipe out Israel.

“Today, we remember what happens when the powerless cry for help and the powerful refuse to answer.”

“In that same spirit, we must also stand strong against the leading state purveyor of antisemitism. The one government in the world that denies the Holocaust as a matter of state policy and calls to wipe Israel off the map,” he said. “The world must stand strong against the Islamic Republic of Iran.”

France’s Macron also spoke out against modern antisemitism, saying that despite all that has passed, “antisemitism and the scourge of antisemitism has returned, and with it, xenophobia and intolerance have also raised their ugly heads.”

“We will not allow ourselves to stand by in silence because we promise to remember and to take steps. Remember, never forget,” he emphasized.

In his address, Prince Charles spoke about his grandmother, Princess Alice, who is buried on the Mount of Olives in Jerusalem and helped to save a Jewish family during the Holocaust.

“My grandmother, who is buried on the mount of Olives, has a tree plated here at Yad Vashem and is counted as one of the Righteous Among the Nations, a fact that gives me and my family immense pride,” he said.

German President Frank-Walter Steinmeier said as a German leader, he stands “laden with guilt” over the atrocities committed by his country.

He also expressed concern over rising antisemitism, noting the October 2019 attack on a synagogue in Halle, Germany.

“I wish I could say that we Germans have learnt from history once and for all, but I cannot say that when hatred is spreading, I cannot say that when antisemitism is hidden in criticism of Israeli policy,” continued  Frank-Walter Steinmeier, “and I cannot say that when only a thick wooden door prevents a right-wing terrorist from carrying out a massacre on Yom Kippur.”