Well, let's look at your offensive versus defensive criteria. The 101st Airborne was one of the "defensive" units deployed, and was in-place by the end of October. It took a total of five months before there was enough force in place to shift from a defensive to an offensive posture - or, in other words, NOT MUCH DIFFERENT than what has happened now - and since the military is in worse shape now than it was in 1991, your theory kinda falls apart. Facts have that impact sometimes.