When was the Dutch liberation struggle against Spain?

The war of liberation of the Netherlands against Spain began in the middle of the 16th century. This war dragged on for a long period of time. At the beginning of the 17th century, it became part of the Thirty Years War. Ultimately, the struggle ended with the war in 1648. Then the Netherlands were finally able to achieve their independence and gain the conquered territories. Spain, on the other hand, began to decline.