In 1938, having already occupied Austria, Adolph Hitler decided to seize a portion of Czechoslovakia called the Sudetenland, which he claimed was historically part of Germany. An alarmed British Prime Minister, Neville Chamberlain, flew to Germany to meet with Hitler. In the face of Hitler’s demands, Chamberlain caved. The Sudetenland was conceded to Germany and the stage was set for continued Nazi aggression and world war.
Excellent historical analogy. (Albeit Chamberlain wasn't a fifth columnist, as is Biden and all that support the unelected Biden-Harris Junta ... which includes most GOP officeholders who remain silent about the stolen election / coup of November, 2020.)