Everything I've said about your lack of knowledge is summed up in your own quote:
"Chamberlain was right to avoid an unwinnable war over a country that was indefensible...."
So....you've decided you must be addressed with Sieg Heil?
Um, no, I've decided that we should look at history objectively, which is something you can't do.
Half the people of Czechoslovakia- The Germans, the Hungarians the Slovaks- wanted out of the arrangement. in fact, the minute communism fell, the country fell apart because it was an artificial construct.