Now in a post cold war with the growing isolationist tendencies of Americans, this may require most of the world, namely western europe to start paying for their own physical security.
If I was an American, I wouldn't want to be footing the bill for Global Security either.
Forty years ago the world was not too different - the USSR and East Germany existed and China was not so strong, but the shape of the rest of it was otherwise broadly similar. There are very few countries that were prosperous and peaceful and lightly-armed in 1980 that are bad choices today.
I think if you transact in dollars or any economy on Earth, you probably do.
It is way too generous towards the USA to describe its military as "Global Security". The U.S. military main job overseas consists in defending north-american economic interests by military means. If this implies overthrowing democratic governments or supporting dictatorships, or the inverse, so be it. It is more a like a mafia (that protects the economic interests of the people who support them) than a police force (that is supposed to protect everybody).
There is a deep and nuanced conversation to be had here, though I will say fourstar already made one important point very succinctly. [1]
I will point out that it has been the position of the American people since WWII that we are happy to foot the bill for global security. So while you might not feel that way, Americans feel differently. I'll give a bit of background on how that came to be.
While Hitler was cutting through Europe there was a extensive internal debate in the US whether just focusing on defending the Pacific would be sufficient. During the time leading up the Battle of Britain, we decided the US view of security needed to be global-- if Hitler overran Britain the threat was just too large. It would turn out that the Brits won one of the most significant military victories in history [2], but prior that fact emerging American policy had come to the firm conclusion that we had to defend east as well as west. The Brits handled it, but it was tough to know that at the time.
Since WWII we have not really reevaluated this policy. Some in the US believe it is time to do so and the current election will decide much of this. But in the last 10 years we have witnessed the biggest land grab in Europe since World War II [3], so now might not be the time to dissolve the world order.
This may be more detail than you were expecting, but I hope you found it interesting. The world is a much more fragile place that I wish and at the end of the day we all need to chip in for global security.
[1] https://news.ycombinator.com/item?id=25004863
[2] https://en.wikipedia.org/wiki/Battle_of_Britain#Aftermath
[3] https://www.brookings.edu/blog/order-from-chaos/2020/03/17/c...
Finland incidentally was a key ally for Hitler in his attack on the USSR.
The US footed a lot of the material costs needed for Europe and the USSR to stay in the fight via lend lease. To the tune of about $575 billion inflation adjusted, and 22% of that going directly to the USSR. https://en.wikipedia.org/wiki/Lend-Lease
So, the USSR played a significant role, but where far less effective than your suggesting.
It is extremely callous to Finland to put it that way!
The USSR attacked Finland while Germany and the USSR were allies against Poland. Understandably, Finland defended itself from this attack and entered into a defensive war with the USSR. Two years later, while this war was still going on, Germany attacked its ally the USSR. Thus Germany and Finland became allies by accident, because they were both fighting the same country. As the Russians started defeating Germany, the Finns expelled the (very few) German troops that they had allowed into their territory, who had to escape to Norway (still occupied by Germany) through the north.
fourstar isn't denying that. Yet the sacrifice of the USSR did not entitle them to hegemony over the free world. Instead it merely saved them and us.
This comment is unrelated to the discussion you are replying to, but I'll give it a brief response. First, all you need to know about whether the Soviet efforts in WW2 and the American efforts in WW2 were better for Europe is to consider the outcomes of East and West Germany. Second, I have serious doubts whether the USSR alone could have prevailed against Germany and Japan. But as to whether the US and the UK could have, you need only ask Oppenheimer.
Key ally how? Beyond diverting troops from the southern front to the finnish theater, how did finland contribute to the german war effort? You also seem to forget that then leader marshall mannerheim refused to advance on key cities in the north, such as st. petersburg and petroskoi even though hitler was quite insistent.
Note I didn't say the whole DoD budget is a waste, but a huge portion of it is only justified by politics cosplaying defense.
[0] https://en.m.wikipedia.org/wiki/Lockheed_Martin_F-35_Lightni...
The classic reference is Steve Blank's "Secret History of Silicon Valley": https://www.youtube.com/watch?v=ZTC_RxWN_xo
SpaceX is the direct result of a South African who studied in Canada and came to the US because that's what he wanted to do. The idea that the US "military ecosystem" could claim "direct" responsibility for what Elon has achieved is an insult to him.
Why do you think Elon Musk chose to start SpaceX in the US?
Should we ask the founder in South Africa who was able to recruit the right technical talent and hold a majority share of a private rocket/satellite company while remaining in South Africa?
Exactly my point. If you want to start a company as ambitious as SpaceX, the US is the only place to do it. If you do it somewhere else, you incur serious risk of getting a large chunk of the company seized/taxed, even if you are successful.
I thought nukes and MAD did that.