We are talking about the domain game here and the reality if challenged. Read all the TLDs and ccTLDs TOS, they all have some mention of TMs, but none of them say it has to be from a particular country. If you can establish a TM anywhere, YOU HAVE RIGHTS to the name. If the owner of the TMed domain cannot prove rights to a domain, then mark up a victory for the TM holder.
I see where you are going with this, but there are two different creatures here, TMs law and domain UDRPs. Yes, the same term can be TMed by different countries, but the point here is rights to a name. Big difference.