About 50 survivors are joining King Charles and world leaders for commemorations including a service and speeches.

WARSAW, Jan. 27 (Xinhua) -- Auschwitz survivors and global leaders gathered at the site of the Auschwitz concentration camp in southern Poland to commemorate the 80th anniversary of its liberation.

The 80th anniversary of the liberation of Auschwitz by Soviet troops is being observed at the site of the former death camp.

Holocaust survivors and world leaders gathered in Poland on Monday to mark the 80th anniversary of the liberation of the Auschwitz-Birkenau death camp, where the Nazi Germans killed more than 1.1 million people during World War II.

Representatives from 53 countries and seven international organisations have confirmed they will take part in commemorations of the 80th anniversary of the liberation of the Nazi German Auschwitz concentration camp in southern Poland on Monday.

Defense expenditure policies now should be akin to those in force during the Cold War-era, Polish President Andrzej Duda told CNBC on Wednesday.

PRESIDENT DUDA: I had this meeting with Donald Trump in New York in April. MR. IGNATIUS: Yes. PRESIDENT DUDA: That was in April. Not in June.

Poland’s President Duda highlights the need for calm discussions on historical matters with Ukraine, including the Volhynia events, during a press conference.

The 80th Anniversary of the Liberation of Auschwitz. — Auschwitz is, for the world today, a symbol of the Holocaust and atrocities of World War II. In 2005, the United Nations adopted 27 January as the International Holocaust Victims Remembrance Day. — Photo: © Adam Bujak / File

Prime Minister Sir Keir Starmer has renewed his commitment to ensure all schools teach pupils about the Holocaust, warning that society must "make 'never again' finally mean what it says".

Antonin Fajkus, a longtime Chicago resident, spent his 101st birthday at the Veterans' Home in Manteno with a surprise guest: Jiří Klůc, a Prague tour guide with hundreds of birthday cards from Czech Republic citizens and other well-wishers in hand.

About 50 survivors of the Nazi death camp at Auschwitz-Birkenau will return to the site on Monday to remember the day it was finally liberated on 27 January 1945. They will be joined by heads of state including King Charles and other European royalty, Emmanuel Macron of France and German President Frank-Walter Steinmeier.