> we regularly organize large military exercises preparing for a new Korean war
And as long as we have a military that organizes exercises to keep itself prepared, that's one of the exercises that makes a lot of sense (whereas we can presumably keep preparations for invasion of (say) Belgium on paper only for the time being).
Definitely! But imagine you're North Korea, looking at the world's most powerful military by a huge margin, practicing the invasion of your country a few miles from your border, on a regular basis. Makes you feel pretty nervous, right?
And as long as we have a military that organizes exercises to keep itself prepared, that's one of the exercises that makes a lot of sense (whereas we can presumably keep preparations for invasion of (say) Belgium on paper only for the time being).