They all create export agreements where countries have to seek permission to reexport and more. Usually for political plays.
It's also the same reason the Swiss defense industry is now in collapse. Because they refused to allow re-export of ammo to Ukraine citing Swiss neutrality.
It immediately made all Swiss made ammo worthless for all european countries in event of war. Lol
Apparently the Swiss are still talking of revising their law while their defense industry is crying because nobody wants to buy their shit as European countries want to be able to help other European countries. Especially circles like the Nordic or Baltic regions where the countries are extremely buddy buddy.
How does that even work? Like you can't use Swiss ammo against European nations or what? It just seems to make it literally(not figuratively) worthless.