@geocal:
Thanks for the clarifications. However, the logic of allowing transports to be immune from enemy submarines during the noncombat movement phase escapes me. Why then does a transport need an accompanying friendly warship when it makes an amphibious assault?
There is no concept of “immunity”. The concept here is that an enemy submarine does not make a seazone hostile.
As well during combat move phase (CM) as during noncombat move phase (NCM) the transport may enter a seazone that contains an enemy submarine, simply ignoring it.
In case the transport goes there during CM intending to unload for an amphibious assault, it needs to be accompanied by a warship at the end of CM to be allowed to unload.
In case the transport goes there during NCM it can load/unload without “escort”.
During CM the transport unloads into a hostile territory.
During NCM the transport can only load/unload from/into a friendly territory.
HTH :-)