https://en.wikipedia.org/wiki/International_law
"In the 1940s through the 1970s, the dissolution of the Soviet bloc and decolonisation across the world resulted in the establishment of scores of newly independent states.[67] As these former colonies became their own states, they adopted European views of international law.[68] A flurry of institutions, ranging from the International Monetary Fund (IMF) and the International Bank for Reconstruction and Development (World Bank) to the World Health Organization furthered the development of a multilateralist approach as states chose to compromise on sovereignty to benefit from international cooperation.[69] Since the 1980s, there has been an increasing focus on the phenomenon of globalisation and on protecting human rights on the global scale, particularly when minorities or indigenous communities are involved, as concerns are raised that globalisation may be increasing inequality in the international legal system.[70]"
Also the US always made a big deal about not joining various treaties, with their reasoning explicitly being "we actually plan to do a lot of things that would violate that treaty." In that sense, that shows the US actually had respect for those institutions.
Also, the west benefited from this arrangement. Most western countries could benefit from the rules based order, and when they needed a little pump, the US broke some rules and brought home a treat for the home team. You might argue this undermines the whole enterprise, but my counterargument is this is the longest period of relative peace and prosperity humankind has ever experienced, so although it wasn't perfect, it was a huge improvement.
There was no dissolution of Soviet bloc during that time.
If the world is governed by rules, why does the United States maintain a considerable number of military bases around the world, far exceeding the total number of military bases of all other countries combined?
Why is the American military budget so much higher than the combined military budgets of all other countries?
It's the other way around. Rules are tools of peace. No peace, no rules. But if you want peace then you have to be ready to wage war. It's called deterrence and the EU is learning this just now, again. That's also one reason why the USA has been called the world police... because it was true.*
If nobody enforces the rules any more, things break down and we close in on violence. It is plain to see on the global scale, e.g. Russia's war against Ukraine, and also the domestic scale, e.g. ICE's violence against their own citizens in the USA.
> Why is the American military budget so much higher than the combined military budgets of all other countries?
The US military budget is about three times that of the EU or China's, or about a third of all military spending on the globe. Obviously, this is much higher than any single entity, but not all other countries combined.
* Frankly, being the world police has had a lot of benefits for the USA. Why they are abdicating this position to run a protection racket instead is for wiser people than me to answer.
Yes- When there is one super power in the world and it says if you don't behave a certain way we're gonna bomb the heck out of you, or boycott you, you get a certain behavior. Even then you might get some actors (like North Korea, or Iran, Yemen, Russia, China and more) that have no problem openly defying and challenging the super power to some extent.
When the balance shifts and you have other blocks with more power that feel comfortable in defying that super power (like China or Russia today) then you see that changing.
There are no "absolute" rules. There are power dynamics, countries, interests, politics. Rules can exist only within a structure that can enforce them, like a country.
"The nature of the LIO, as well as its very existence, has been debated by scholars."
Nobody is throwing anything away and that thing you think they're throwing away didn't really exist.
I agree most countries, certainly western countries, have realized that waging the kind of wars like WW-I and WW-II is not a good idea. But there have been a lot of war and killing anyways since the world wars and there have been a lot of new borders redrawn and countries formed. In more recent times we have Putin invading Ukraine and the general instability of the post cold war Eastern Europe.
So the calculus has changed for many reasons. But "new order" is not one of them. The so called new order was a result of the calculus changing, not the other way around. Countries fight for power in other ways and other societal changes also influence their decisions. I.e. you are confusing cause and effect. Now we have different dynamics, not a collapse of world order, things have shifted very slightly. "The end of the world as we know it" gets a lot of clicks on social media but it's not like we're suddenly having WW-I all over again and it's not like that order you thought was absolute really was. It's just that's how the alignment of interests landed.
