Ninety-Year War (Chaos)

The "Ninety-Year War" started when was occupied and dismembered in the. The Spaniards wouldn't accept the new order and fought a prolonged guerilla war to regain independence. No French government, neither democratically elected nor with temporary dictatorial powers, could escape the vicious circle of uprisings that took its toll on the young men of, which lead to cries for revenge that no politician could afford to disdain, which would only lead to more uprisings of the proud Spaniards, going on until both France and Spain had wasted all their power.

Details
1801: After anti-French uprisings in Andalusia, and  attempt a landing in Spain, which the French still defeat.

1810: Britain tries again to support an anti-French uprising in Asturia, which the French suppress again.

Liberation
Help came finally from an unexpected side. Emperor of  had seen that both France and Spain had wasted their manpower. Thus, he made three, during which the whole Iberian peninsula was liberated from France - and became part of the New Roman empire instead. The dynasty was allowed to return, however.

In 1887, the war ended after France retreated from the last areas it held on the Iberian peninsula.