Probably as good a time as any to re-link the Mother Jones piece "Daniel Ellsberg on the Limits of Knowledge": https://www.motherjones.com/kevin-drum/2010/02/daniel-ellsbe... Linked on HN numerous times but largely only discussed here: https://news.ycombinator.com/item?id=3296691
Ellsberg had access to the information Kissinger had and still thought the Vietnam war was unjust and unwinnable. It’s hard to imagine what Kissinger knew that would drastically change my perception on him.
JRK got us into it, and Nixon got us out of it while navigating the complexities of China, the cold war, and a potential WW III if we appeared too weak.