“..Yep, they say you can learn a lot about a nation by the friends they keep....”
Nations have no “friends” just a commonality of “interests” that brings them together. Those “interests” change due to changing international circumstances. That “togetherness’ may or may not last with those changed “circumstances”.
Your list illustrated that well !
And there you have it, an Absolute Truth that will never change.
Those “interests” change due to changing international circumstances.
And that is what changes alliances.
Well done!