Disaster strikes for the Republic
In 1672, the French king started a war against the Dutch Republic. Louis XIV wanted possession of the Spanish Netherlands. He claimed that these areas belonged to him because his wife, daughter of the king of Spain, inherited them.
Louis had made secret agreements with England and two German states, Cologne and Munster, to join his attack on the Dutch Republic. England had agreed, because it was jealous of the Republic's successful trade and wealth.
So when Louis XIV started the war, the English attacked the Republic at sea.
At the same time the French army and the armies of the German states invaded the Republic. The Republic was not prepared for this kind of war. At sea the Republic was very strong. Admiral Michiel de Ruyter defeated the English fleet, preventing the English army invading the Republic. So after a year, England was forced to withdraw from the war. The Republic’s land defences, however, were not good. The French army was able to invade and control parts of the Republic in no time. 1672 is known as the Disaster Year ('Rampjaar'), because the Republic was attacked from three sides at the same time.