Two sentences to consider:

The largely pastoral economy of Sweden and Finland left production decentralized in peasant households where many tasks could be taken over by women in their menfolk’s absence. A far higher proportion of the male population could be conscripted than in the cereal economies of Central and eastern Europe, where men were required to work on their landlords’ fields. (p. 187)

I would enjoy seeing James C. Scott’s take on this.

Another thing I learned from this book is one reason disease was so deadly to pre-modern armies. Because they had seldom traveled very far from home, marching into enemy territory was the first time many soldiers were exposed to unfamiliar microbes (p. 483).

As for the impact of Westphalia:

[T]he congress was a ground-breaking event. Medieval church councils were the closest precedent, but this was the first truly secular international gathering…. [T]he congress eroded the medieval principle of hierarchy. (p. 672)