alt Hacker NewsSo while many of the reasons are questionable (understatement of the year), let’s focus on the last one. After America lost the war in Vietnam, what happened to those neighboring nations? Did they suffer from Vietnamese communists? The only Vietnamese intervention was in Cambodia, and hardly anyone thinks that wasn’t the right thing to do.
The OP said it was not for “defence.” I am arguing the reasons were for the defense of American interests. That is objectively true.