Ark Royal was several months after the PoD. I had that U-Boat that sunk it butterflied away
. As for East Prussia, I was giving that to Poland in compensation for something else Poland won't get and because the USSR gets some other additional territory ITTL...
A quote from the TL
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The Germans retreated west and in April 1943 all of the Soviet Union’s pre-war territories had been restored to it and Finland had been occupied.
A quote from the TL