The comparisons to VN are astounding at the strategic level. As many have already said, we never seem to learn from history and keep pursuing the same strategies with the expectation of different outcomes - NUTS!
But maybe we are looking at this the wrong way? Disregard all the rhetoric about nation building, COIN, winning the war, advancing democracy, liberty for all,rah rah rah. What if the strategy is working and the outcomes, predictable and obvious by now to even the dullest of tools, what if these are, in fact, the desired outcomes?
After all, the amount of debt incurred to prosecute these wars has been huge. Makes me wonder.