I often find that much of the Russian fighting power becomes stacked in Belorussia. Btt by building eight tanks each turn, I can easily use the combined forces to crush the Belorussian army, and after that the door to Moscow is blown wide open.
i’m pretty sure you need a transport to move between islands
the 12 ipc’s is 1 time only, it can be saved and used later, but you don’t get 12 more ipc’s