Yes, it does not matter which territory the troops on the transport are invading. The amphibious assault is in the sea zone adjacent to a territory with an airbase, which is all that is required.
Marsh
As above…transport was turned back due to wiffing sea battle…do declared attacking air units still have to fight 1 round in the territory?
Yes. They must fight for one round before they can retreat.
Pacific 1940 Second Edition Rules (Renegade Version) page 17.
@AndrewAAGamer
thanks