Why is it that Victor and Yuuri don't write to one another once Yuuri leaves Berlin? Also, did you ever write the letter that Yuuri sent to Victor to let him know that he'd made it safely into Switzerland? Also, I should say that Blackbird was an absolute joy to read and I could probably send you a list of questions the length of my arm about it! <3
Hey I’m always happy to answer questions so please feel free!
They didn’t write to one another after Yuuri left Berlin primarily because sending correspondence between Allied and Axis nations was extremely dangerous, and generally done only for espionage related purposes or for very high level diplomatic contact between leaders on either side. It also required a go-between in a neutral country like Switzerland or Spain, and being able to use anonymising services like PO boxes (this is one of the things that Christophe did for Minako’s spy ring during the war). Particularly it would have been very, very suspicious for Yuuri to be receiving personal correspondence in German, from Germany, once he’d made it to Britain- it would have made him look like a double agent if anyone discovered it. Also even if they had been able to correspond, it would have been extremely painful- neither of them knew if they’d even survive the war, let alone have any chance of ever seeing one another again.
I didn’t write that specific letter. I imagine, though, that it was very short and oblique, both in order to protect Victor’s safety in case it was somehow intercepted, and because again it would have just been way too raw and painful for Yuuri to say anything more meaningful.