I can't believe people are really serious enough to think they're going to make a difference against professional troops. Unless people believe there is danger of an invasion from the Virgin Islands, any nation in the world contemplating an invasion on US soil would have to equip their troops with highly sophisticated weaponry.
During a ground invasion, the force of their armored vehicles, helicopters, fighters, assault rifles, machine guns, missile launchers etc. etc. would scare the living daylights out of any pop gun equipped militia. It's not the 1700's anymore.
Anyway, there is no danger of this happening any soon because no country in the world has the interest, technology or equipment to carry out such an invasion, not even China. You would have to think that spending 700 billion US$ each year on national security (against China's 120 billion US$ each year which is the world's second highest nation for military expenditure) would safe guard from outside invasions, so don't worry boys and girls you can safely put away your pop guns.
Edited by BlackRedLittleDevil, 20 November 2012 - 06:54 AM.