Yes, he was not the president then.
The Democrats in office at the time where more interested in reporting False enemy casualties, and controlling the politics of the country.
They also, had the silly notion that they could get rid of the slums by drafting all the young and having them killed as heroes in the war. It did not work, all they got back was a bunch of very angry (and drudged) individuals with nothing to lose. Hence the sudden advancement of Civil Rights.
The Vietnam was was two fold. 1) to reestablish French Colonial Rule; 2) to stop the "domino effect" if the country went communist.
[The U.S. did something similar when the Russians revolted in 1918. U.S. troops invaded Siberia to reestablish the Czar, that's why the Russians Communists do not trust the U.S]
· 12 months ago