When a soldier takes the oath of enlistment or the oath for commissioned officers they are swearing to support and defend the Constitution of the United States against all enemies, foreign and domestic. The Constitution, not the President or Congress, The Constitution. They obey the orders of the President, but their oath is to the Constitution. Something to keep in mind next time you see a person in uniform.
We didn't treat the Vietnam War veterans very well when they returned home from that hell that they had served in. I don't think there is anything that we, as a country, can ever do to make up for that.
Thank you, Vietnam War Veterans, we should have treated you better when you returned.