Let me put it to you this way , IF the US was invaded , the people of this country , liberal or conservative , black , white , etc. etc. ………….our land being invaded would be a bonding agent . There are enough guns in private ownership as it stands now , not to mention what is on the market . In an event of an invasion by foreign nationals , that would be enough to unite all factions of this country to drive away any invader . And that is just the civil population , the military is another thing . They cant do it . That would be the one uniting thing that this country would fight against . ………..Suicide for an invader .