Battle of Montes Claros: Portugal definitively secured independence from Spain in the last battle of the Portuguese Restoration War.
The Battle of Montes Claros was fought on 17 June 1665, near Vila Viçosa, between Spanish and a combined Anglo-Portuguese force as the last major battle in the Portuguese Restoration War. The battle resulted in a decisive Portuguese victory and is considered one of the most important battles in the country's history.