Libertarian literature holds that periods of decentralization, weak governments and economic anarchy are responsible for most of the development of western civilization. I think it’s true, but an important question immediately arises – why the islands of liberty have not developed into stable and powerful nations? Without finding and addressing the causes all future attempts are almost certain to follow the path of their predecessors.
One of the common features of traditional state governments is militarism. War is a major tool of advancing government power. How can a libertarian nation compete with its aggressive competitors? I think many of young free nations (e.g. city states) were destroyed by direct or indirect [military] aggression.
By its very nature a libertarian nation cannot desire and persistently seek destruction of another nation (it is not profitable and does not improve quality of life). Ruling elite of a traditional state (on the contrary) by virtue of its destructive ability of imposing their will on their fellow citizens have an a priori advantage in their struggle. They can wage a one-sided offensive for decades. Keeping their people in poverty they can keep attacking their unwitting opponent using all sorts of dirty tricks while the opponent is busy improving quality of life, accumulating wealth etc., too busy to actively defend themselves especially when defending requires attacking and destroying their attacker.
When and if it goes all the way to actual military offensive, again, the virtues of libertarian principles become great disadvantage. It is well known that an army is incomparably stronger than an armed crowd of the same size and with the same weapons. What gives the army great advantage is strict vertical structure, discipline when everybody follows orders of their masters, even if the masters are not exactly bright and not always competent. It makes army a single entity pursuing goals of their master.
The political and military structures that give oppressive states such a great advantage in their war against libertarian nations contradict libertarian principles. It’s difficult to see how they can neutralize those (oppressive states’) advantages without ceasing to be what they are and turning into oppressive states themselves. I think the mutation is what happened many times in history (If memory serves, this scenario happened in medieval Spain).
I think finding a solution for those problems will determine whether and when people will have a chance to live their lives enjoying liberty.