>>I "get" the whole American Exceptionalism theme. However, there are other successful nations out there. Germany, for example, was absolutely trashed in WWII but came back to be a European powerhouse. Ditto Japan. Both of them obviously have lessons about rising from adversity.
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>>Now let's see: who helped rebuild western Europe after WWII? Oh yeah, it was America, wasn't it? I am sure that you are familiar with the Marshall Plan...
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>Some of the same folks that help blow it up - oh yeah it was America wasn't it? - I'm sure you you're familiar with all the bombs we dropped.

During unrestricted warfare, rules go out the window (except nominally various Geneva Conventions etc. in the case of WWII). Carpet bombing or nuking your opponents confers no obligation, legal or moral, to help with rebuilding once hostilities are over.