I think that can be done in a number of ways. It's been seen a lot in Europe, with Russia. There has been an escalation in the grey zone over recent years. That involves trying new techniques, new measures to see if there's a response and what kind of response is given. We've seen drones, but we've also seen a number of incidents involving underwater cables, for example.
What's the response? That second example isn't necessarily military. The idea is to know whether there is a response, whether there's an understanding that it's a threat to national security, and whether there will then be a coordinated response to that threat. For example, in the incidents involving underwater cables, there was a judicial response: People were arrested, and there were criminal charges, among other things.
We see it in cybersecurity as well. People try to check where we see them, whether we see them or not, and that's when it can be dangerous. It also enables them to adapt. However, I think what's most dangerous right now, and what worries me the most, is the current escalation. These people have the impression that there will be no clear and definitive response to the progress they're making.
In the case of China, for example, the rhetoric has changed a lot in recent years, for reasons specific to the country, but also because there has been a very clear response to its role in the Arctic. China went too far, I think, with a very aggressive approach. It reviewed its diplomatic approach, because it realized that it was being excluded from certain forums.