[jann]

Actually, is there some analysis on that?

I always suspected that, with all the high-tech equipment, after the initial stockpile is gone (and a few hundred planes is not a lot if you look at WW2), it's much harder to scale up production (if one country alone even produces all the necessary parts like semiconductors, rocket engines, etc.).

[ido]

It's probably not going to be a free for all but a 2-3 sided conflict with alliances of several countries on either.

US+EU+allies can probably manufacture all the war machines they need, as does China+allies.