Here’s a large post, from this very same page, discussing the very same thing:
http://www.axisandallies.org/forums/index.php?topic=36942.0
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And looking at it, you actually made the last post there. I’m confused, and I’ll shut up now.
Can you build a mnr IC on a TT you have just captured or do you have to wait a turn?
@The:
Can you build a mnr IC on a TT you have just captured or do you have to wait a turn?
You can only place ICs, naval bases or airbases in territories that you started your turn with. So, you would need to wait a turn.