The gradual decline of a society is often a self-induced process of trying to meet ever-expanding appetites, rather than a physical inability to produce past levels of food and fuel, or to maintain adequate defense.
Nine years ago on September 14, 2001, I placed the lone vote against the 'Authorization for Use of Military Force' - an authorization that I knew would provide a blank check to wage war anywhere, at any time, and for any length.
It is of course the nature of historical contraction that the shortest distance to a historical destination is never a straight line.