After all, it is frequently pointed out that private ownership of shotguns and semi-automatic rifles could offer only very limited resistance to the extremely well-equipped and well-armed United States military.
It is often, therefore, just assumed that the writers of the Second Amendment were naïve and incapable of seeing the vast asymmetries that would develop between military weaponry and the sort of weaponry the average person was likely to use.
Was the plan really to just have unorganized amateurs grab their rifles and repel the invasion of a well-trained military force?1
The answer is no, and we know this by looking at the wording and reasoning behind the Second Amendment. The text, of course, reads "A well regulated militia, being necessary to the security of a free state, the right of the people to keep and bear arms shall not be infringed."