I have some questions about retreating in AA50.

1. German troops in Belarus are attacked by 3 infantry from Russia and a fighter from Karelia. After the first round of combat are the troops allowed to retreat to Karelia?

2. And same question if fighter came from Finland through Karelia?

3. Can you retreat into a just captured territory? I mean if Ukraine is just conquered and attack in East Poland with some infantry from Poland and a fighter that attacked after flying over Ukraine. Are you then allowed to retreat to Ukraine?

As I read the rules on page 19 all these should be allowed, since the rules say that for Sea units the zone must have been friendly since the start of the turn.