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This thread regards two separate scenarios, opinions are requested for each. Suppose somehow, whether by plane crash, ship sinking, or political intrigue:

First, that the Polish Cypher Bureau is unable to share its work on German Enigma traffic in August of 1939 and neither Britain nor France has that information when Germany invades Poland,

Second, that the Polish cypher experts are caught sometime after the Low Countries are invaded in May 1940 but before the end of June 1940. Germany is able to not only capture the people but proof that Enigma has been cracked along with proof that the French and British have access to that information.

How does each affect the progress of the war?
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