I played an interesting game the other day. I was Germany and conquered Britain on the first turn, and wanted to make sure this is indeed possible and I did not violate some rule.
I began my turn by spending 10 on two dice for Long-Range Aircraft. I got it. I then put a tank and an infantry on my transport and moved my fleet a space over and engaged Russia’s sub which had moved into that space. I flew every single plane I had into Britain (they all could at least land in Western Europe with Long Range). When I defeated the sub, I unloaded the transport into Britain and did that battle. AA shot down one fighter. The rest of my units decimated Britain without really much of a fight. I think I lost my infantry and another fighter in the battle. I took over Britain and took all of its IPC’s, before Britain ever even got a move.
Did I do something wrong? It seems to me that if Germany gets long-range aircraft on the first turn, then there is nothing save some pretty bad fortune that would prevent Germany from taking Britain. In fact, in light of this, it almost makes sense to spend everything you have on long-range aircraft on the first turn, to make it almost certain that you get it. Then you take Britain and have a ridiculous amount of IPC’s to use the next turn.