I hear what you are saying, and I respect it. However, what happens when some group threatens to shut down a major global shipping route that the EU relies on?

I hear what you are saying, and I respect it. However, what happens when some group threatens to shut down a major global shipping route that the EU relies on? What happens when imperialism spreads near our borders, but not yet across them? Do we wait until the final moment to mobilize? That seems like horrible planning. In the period between WW II and Iraq II, the USA used soft and military power to keep basic world order (country borders) and commerce running. It was the enforcer of the post-war Rules Based Order. This was a good thing, that I believe we all took for granted. Even the USA has now taken that for granted. That historical period is now officially over. What/who will fill that void of global stability?