Why the Schism?

The debates and arguments continue. Both sides can’t understand why their opponents can’t see their own point of view. The battles between Progressives/Liberals and Libertarian/Conservatives are the most vociferous. Why does such contentiousness exist? Here is my analysis. It boils down to some specific realizations.

Defending a Free Nation

Most societies, at least in this century, handle the problem of national defense by having a large, well-armed, permanent military force, run by a centralized government, funded by taxation, and often (though not always) manned by conscription. Is this a solution that a free nation can or should follow?