>>11
Industrialisation is a blanket term for 1000s of technological improvements and other changes such as the actual physical changes that are needed to put it into practice, all of which vary widely depending on circumstance and all of which take varying amounts of time to spread through a society. Britain of the 1850s where people still thought disease was caused by bad smells is a world away from countries from the 1950s onwards which had full access to modern philosophy of science, both were industrialised in some ways more than others, neither enjoyed the benefits of modern paradigm shifts.
If anything there is more of a spectrum from pre-industrial to industrial to information categories and even then this doesn't cover other factors such as the nature of the economy, the political culture, military and diplomatic tensions or the entirely inexplicable.
With all this in mind there are too many problems with rooting a major cause of war to differences in the prevailing economic sector.
Also, niggers.