Why did the allies appease hitler?

There were many reasons why Chamberlain appeased Hitler, but here are the main ones:

1. The British people wanted peace - they would not have supported a war in 1938.
2. Many of Hitler's complaints appeared reasonable at the time - especially about the Treaty of Versailles.
3. Chamberlain wanted a strong Germany to serve as a barrier against expansion by communist Russia.
4. Britain's armed forces were not ready for a war, and they could not have helped Czechoslovakia anyway.
5. Many people admired Hitler. In 1938, the American magazine 'Time' declared him 'Man of the Year'.
6. Chamberlain remembered the slaughter of the First World War; he thought another war would destroy civilization.