NATO has far higher military expenditure than Russia.
US does. European military isn't particularly large or capable.
I think if nukes were out of the picture then retaking the Crimea would be a possibility.
Sigh. Do the words "land war in Asia" ring any bells? (yes, I know that Crimea is technically in Europe)
European militaries are extremely capable, for the most part - pound for pound, they're almost as good as the US. They just have a lot fewer pounds.
And historically, land wars in Asia haven't been a big deal. That's a Vietnam-era myth - WW2 involved a lot of Asian land warring, and that went pretty okay.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.