Earlier quoted context omitted.
The most famous one ended when the soviet union collapsed (fatigue, economic stresses, random misunderstandings). I'm looking forward to the same thing happening to CCP/china in about a decade or so.
Here's hoping the US isn't the one that collapses in on itself this time. My perception of China is that it's government makes life pretty terrible but it seems better organized over there (because of state control).
I sincerely hope that the US doesn't collapse because we'd be left at the mercy of Russia and China.