So I get why the Battle of Bailen wasn't mentioned since this fic centered mostly on England and Prussia, but it was actually THAT battle fought by Spain's far poorer and less trained army that signaled the beginning of the end for Napoleon's army since rabble actually managed to defeat Napoleon's men although Napoleon himself was absent. But yeah...Spain's guerrillas also dealt devastating blows to Napoleon so much so that Napoleon tried to seek a treay with Spain (but since Napoleon broke a previous treaty, Spain didn't trust him) and after Napoleon's final defeat, he called it the "Spanish Ulcer" in his side. So yeah...Spain greatly helped bring about Napoleon's downfall.