Full disclosure: I'm Strife26, and as such am posting this from a DoD computer, while being paid a penny every 15 seconds by the US government, and just after eating a meal prepared by a contractor for the US government.
In general, I'd say that GlyphGryph is recommending that the US draw itself down from being a hyper-power to just super or normal status.
Historically, the US always draws out armed services down all to heck after every completed war (isolationism is part of our political culture). Our shift to interventionism and the world's policeman role. Do we want this role?
On one hand, it's certainly a serious drain on our resources. On the other hand, without a ready military, we lose a lot of our control over the world stage. Right now, there *can't* be a conventional world war three. The US/NATO would kick everyone's ass front-ways and back ways.
If we draw ourselves down, what then? Protecting ourselves isn't really all that tough. We'd need to keep full-time military forces of course. Don't get me wrong, I've got nothing but respect for the National Guard, and they're certainly high up in the running for WHAT STRIFE SHOULD DO AFTER HIS ENLISTMENT IS UP, but they're certainly a step below regular army troops (generally, exceptions exist, especially as regular army troops are certainly a step and a half below troops who have actually been deployed). Call it forces draw down to the extent needed for internal security.
Basically, it forces us into an isolationist mindset. Right now, that's not that big of a deal. But what about in a ten years? China's only going to get bigger, you know. At the moment, whenever China and Tiawan have another little tiff, we can park a warship or two between them (the united states has more aircraft carriers than everyone else combined). Basically, I contend that without the presence of the US Hyper-power block, there's nothing to stop the world from going crazy again. It's a lot easier to keep a standing Army than it is to try to build it again (see WWI, II, Korea, Vietnam, most wars).
Some drawdown is certainly expected and welcome. We're finishing up in Iraq and Afghanistan, despite what anyone says.
However, as Nadaka said, a hell of a lot of the United States is directly based on defense spending. Exactly how we could change that, I'm not sure, although his idea of trying to depoliticize it certainly sounds good.
I would like to note that, in any case, abandoning S Korea isn't a good idea, nor is trying to depend on nuclear deterrent for defense of the homeland, or anything other than deterring nukes.
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Counting: counter example: Desert Storm. Which I'd contend is exactly the sort of force that America needs to maintain. There'll always be naked aggression in the world, and therefore the world as a whole needs an army to stop it, can one trust the UN to field troops?
Kaijyuu: Not really. Building up an army is a very very difficult thing, imagine a demilitarized US trying to remilitarize. How long do you think it'd take Congress to reauthorize funds, for example? Then you've got to dust off equipment, which requires all sorts of new parts (the Abrams, for example is *not* a girl who does well when you let her sit for very long, as I keenly know). Then if the core of the army is gone, you need to replace it. Turning civies into good soldiers isn't instant.