In reality, if we look at today's world, I think more threat could come from cyber-attacks. Russia actually used this against Estonia at one point, when they didn't like the fact that Estonia was moving a Second World War monument. They were not taking it away. They were simply moving it to the cemetery outside of Tallinn. Then they were severely attacked.
Then the world saw for the first time what kinds of capabilities official Russia has. When you hear about all these “Fancy Bears“ or something, this is just a name. Actually, these are special units somewhere in Russia and Moscow or somewhere else.
There's more threat than this, but it is like this because we can deter. The decisions by Warsaw or Wales or you being there, it's deterrence and deterrence worked before, and it works now. Deterrence really works. I'm not afraid of invasion, military invasion. In reality, cyber-attack could come right away.