Welcome to the world of International trade. The Brits used to send their
navy out to plunder spanish galleons on the high seas.
What you didn't pick up, is that using your domains may not be a crime in
other parts of the world. (Actually, its not technically a crime in the US
either. But in the US, it may subject the unauthorized user to civil
Althougth, there was a review process when the TLD's were created. It was
decided then that each country would have a TLD, and would be responsible
for its administration.
So your rights are limited to whatever they are with respect to
international law, and your rights in that foreign country.