Armed action by regular soldiers of the United States Government acting under proper authority against those who take up arms in violence against the Constitution and the rule of law.
Guess where that puts those who ‘lock and load’? Not on the side of the Constitution..... particularly as those locking and loading in this thread have shown they don’t understand the law involved.
We are a republic of sovereign states. It is the responsibilities of the citizens of each State to defend their own state's Constitution and government, and I wouldn't count on the federal government coming to the aid of say, Arizona in the event that these "reconquistas" staged an armed revolt there. Maybe that sounds harsh, but it appears to be the political reality we face right now.