Working with Nazis doesn't work. How Britain Hoped To Avoid War With Germany In The 1930s | Chamberlain’s policy of appeasement,in the 1938 Munich Allowed Germany to annex the Sudetenland. Trying to appease Hitler instead it emboldened him to dismantle Europe.
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How Britain Hoped To Avoid War With Germany In The 1930s

Instituted in the hope of avoiding war, appeasement was the name given to Britain’s policy in the 1930s of allowing Hitler to expand German territory unchecked. Most closely associated with British Prime Minister Neville Chamberlain, it is now widely discredited as a policy of weakness. Yet at the time, it was a popular and seemingly pragmatic policy.

Imperial War Museums