Neville Chamberlain holds the Munich Agreement, a fateful 1938 decision to appease Hitler, who went on to seize most of Europe and murder millions of civilians.
“It’s certainly an innovative approach to a negotiation to make very major concessions even before they have started,” stated former Swedish Prime Minister Carl Bildt, who co-chairs the European Council on Foreign Relations. "Not even Chamberlain went that low in 1938."