The war in Spain had two major consequences:
1 - After the defeat of the Spanish regular armies the conflict degenerated in a guerrilla warfare, which engaged more and more French units to fight it.
The excesses committed by the French troops in their retaliations against the civilians increased the Spaniard's hatred towards the invaders, opening the way to an endless chain of cruelty and bloodshed by both sides.
2 - It allowed Great Britain to intervene in the conflict, thus worsening the French military situation because that "Second Front" was awfully absorbing men and resources, which would have been better employed on the other European fronts, especially starting from 1812, after the Napoleon defeat in Russia.
The war with Spain had a significant impact on Napoleon and his army. It drained valuable resources and manpower, and guerrilla warfare tactics employed by the Spanish resistance caused significant attrition and demoralization among French troops. The prolonged conflict in Spain also diverted Napoleon's attention and resources away from his other military campaigns, ultimately contributing to his downfall.
spain
Because it turned into an early form of guerrilla warfare, it tied down large numbers of troops in Spain chasing small numbers of insurrectionists and bandits who became experts at ambushes and raids.
Yeah, who DID lead the French army in the seven years war?
Because the guerrilla's were not an army Napoleon could defeat in open battle.
Spain tied down a large number of troops to fight a guerrilla war and Napoleon failed to overtake the Russians in their scorched earth retreat beyond Moscow.
His troops got tied down in Spain fighting a guerrilla war.
spain
Napoleon begun the war in 1807 by the abduction of the spanish king.
The war in Spain from 1807 to 1814 between Napoleon's occupation army and the armies of Portugal and Britain, plus Spanish contingents and guerilla forces, for the control over Spain . The French lost the war and the British commander the Duke of Wellington went on to invade France from the south.
They were there as part of the Peninsular War of 1807 in which Napoleon replaced Charles IV with his brother Joseph.
Because it turned into an early form of guerrilla warfare, it tied down large numbers of troops in Spain chasing small numbers of insurrectionists and bandits who became experts at ambushes and raids.
Yeah, who DID lead the French army in the seven years war?
Into Spain and Portugal in the Peninsular War.
Because the guerrilla's were not an army Napoleon could defeat in open battle.
Spain needed money to fight its war against Napoleon.
In his memoirs Napoleon lays the blame for his later defeats (including Russia, Leipzig and Waterloo) squarely on the guerrilla warfare that he faced in the Peninsular War. It tied his troops down in Spain and reduced their fighting spirit to the point that he no longer had a cohesive Army.
Spain tied down a large number of troops to fight a guerrilla war and Napoleon failed to overtake the Russians in their scorched earth retreat beyond Moscow.