I was more into the first round of semi-liberalisation, the one that led to 1812 constitution: a paradox that ideas brought by the french military presence were at the same time used against France and pro-monarchy, just to be crushed by the same monarchy when the french presence was no longer there to enforce them.

We could also speak of the tragedy of logistics, the lack of being a main reason for military depredation in Spain by the french army and the subsequent revolt by the spanish people starved to death by military requisitions.