@gamerman01:
Is it any different if the transport is not moving into the hostile sea zone?
Example - British fleet is in Z7 with lots of transports, and lots of ground units in the UK. If Germany has an IC on France and builds one destroyer right before UK goes, does that make it impossible for the UK to load units from GBr from Z7?
Yes, the destroyer would prevent transports from loading in its sea zone. However, nothing would prevent the UK transports from moving to either sea zone 6 or sea zone 8 (assuming they’re friendly), loading there, and then returning to sea zone 7 to attack.
@gamerman01:
Or can a defending power build 1 DD in Z5 to prevent all loading of ground units by enemy transports that are in Z5??
Yes.
@gamerman01:
If so, this seems like a lame rule, as the new DD would be built hundreds of miles from the loadings site, where there could be a massive force of warships. There’s no way a single destroyer unit should be able to disrupt so much. But I guess a single destroyer can block a massive fleet, too, so whatever.
Yes, it’s the same principle.