Try to find out as much as you can about what the job/career is actually like, ask people who are in that field, if you can try to get some experience as an intern.
The worst thing you can do is focus on a major without considering what the actual work will be like once you graduate. Even if you love studying a topic, the actual work may be much less fun in practice.
Try to get some part-time experience of your own as you can, even at sub-entry level/intern levels it should help you know better what kinds of jobs you would enjoy full time. It’s often hard to envision a job without having some exposure to the field.
Senkaku islands, there’s pretty regular posturing from both sides over the ownership of a couple barren rocks since they have implications for territorial waters.
Here’s the wikipedia article:
Senkaku Islands Dispute