The conference saw Allied leaders United States President Franklin D. Roosevelt, British Prime Minister Winston Churchill and Soviet Premier Joseph Stalin meet to discuss the government of post-war Europe.

The advancing Soviet troops met some resistance from remaining Nazi troops in the Polish city of Oświęcim, but by 3pm on 27 January 1945 they had captured the Main Camp and Auschwitz II-Birkenau.

The original signatories – United States President Franklin D. Roosevelt, British Prime Minister Winston Churchill, the USSR’s Ambassador to the US Maxim Litvinov, and Chinese Minister of Foreign Affairs T. V. Soong – were joined the next day by a further 24 nations.