For your reference, the official A&A Europe FAQ:
Defending submarine agains combined allied forces
-
I have substalled the US forces on turn 1 leaving the US destroyer alive. The manual mentions 'a submarine can only be attacked by air forces when an friendly destroyer is present. Does this mean the in the UK turn the UK can use their bomber to attack the sub in this seazone?
-
I think that it can. I would need backup on that though. :|
-
It can.
-
thanks for the answer.