I think we may have seen the same documentary. It was a talk eye opener.

There was something to be admired in an army trained to fight so well as to instill fear and respect through the ages, but it is funny that the price of this is rarely talked about. A society where only one thing is valued above all else has no balance and is pretty much guaranteed to collapse. You'd think it a lesson to be learnt from history, but instead we revere them for that fighting prowess and abstinence of all comfort, which ultimately brought about their extinction via their tunnel vision.