So, the question is not only what to hold to maximize portfolio value today, but possibly more imports, what will be most resilient by providing income (or equivalent benefit) as well as survivability

Bold by me. Because in the current times this is my main focus, and not where my money earns a few % more or less. And while you (and WendyBG it seems) are discussing stocks and bonds, and how to internationally balance them, with respect to "survivability" I am more interested in a 3rd leg, "real" real estate: To (if I can finally decide where to live most of the year) put a good part of my assets in buying land and a decent home there. Simply to own the land on which I live, as --- apart from it being demolished by a war --- this is more of a "last resort" than any virtual paper (though my ownership of it, yes, in the end also is just virtual paper in that jurisdiction).

Warren Buffett once mentioned he is concerned by the increasing proliferation of nuclear weapons. Me too. This and a world that seems to become ever more crazy.... We had many peaceful decades, nearly a century without war in Europe (and the US). Everybody takes that for granted now, but historically it is not the norm.