Nato leaders agree not to mention World Cup to Donald Trump to avoid irritating him
(www.theguardian.com)
Ironically, it actually did its job pre WWII.
Chamberlain realised he had fucked up. Britain didn't have the forces to actually resist the Nazis. Appeasement was to buy them time to rearm. When the war actually started, Chamberlain fell on his proverbial sword, to give Churchill a clean slate and a functional military to work with.