Now I have a retreat question. This is kind of specific and came up in our game last night.
Germany attacks SZ 109 with 1 submarine, 1 fighter and 2 Stukas. The UK has 1 destroyer and 1 transport there and scrambles 2 British fighters and 1 French fighter. Both sides got 2 hits. The UK removes the destroyer and French fighter as casualties and Germany removes both Stukas as casualties –- leaving 2 British fighters and 1 transport against 1 German Submarine and 1 German Fighter.
My question is: Could the German fighter retreat and leave the submarine in SZ 109 to destroy the British transport since the British Fighters can not hit the sub? Or do both German units have to retreat together?
The way we resolved it is to have the fighter retreat and the submarine submerge. While the transport survives, at least the sub can still interdict the British convoy for 3 IPCs. I think this was the correct way to do it other than having the sub also retreat to a friendly SZ.
Submarines have two options to “retreat”.
They can either submerge at the beginning of combat rather than firing a shot(but all other units there will fight at least that round of combat), or they can retreat with the entire force at the end of combat to a seazone in which at least one ship travelled through to get to the contested seazone.
I believe in your example that constitutes an illegal move. I’m fairly certain either the sub would submerge and the fighter would have another round of combat, or the sub retreats to an adjacent seazone it came from (NOT a seazone that the aircraft came from) while the plane retreats from combat but remains in the seazone and moves away during the noncombat phase. You cannot selectively retreat aircraft from the battle - it’s all naval and air units or none.
The only exception for partial retreats is during amphibious assaults, where units that weren’t unloaded by transport can retreat, leaving those units that were unloaded alone on the beaches.