I always liked reading about the little undeclared war between the Luftwaffe and the Swiss Air Force.

"After the Swiss shot down a few German planes in June 1940, Luftwaffe bombers deliberately flew into Swiss territory with an escort of Messerschmitt Me-110s on June 8, meaning to punish the Swiss-only to get the worst of the ensuing engagement from determined Swiss pilots flying German-built Messerschmitt Me-109Es."

Jon Guttman for WWII Magazine

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For the first time I have seen "History" at close quarters,and I know that its actual process is very different from what is presented to Posterity. - WWI General Max Hoffman