How did the Dutch defeat the Spanish?

The Spanish Armada, which was a large fleet of over one hundred ships belonging to the country of Spain, was considered indestructible.  Queen Elizabeth I of England supported the "Dutch rebels in the Spanish Netherlands," which angered the Spanish king.  He decided to invade England with the help of his mighty Spanish Armada.  The plan was to "transport a Spanish army" across the English Channel from Flanders to invade England.  The Armada was delayed due to a storm, which gave the British and Dutch fleets time to prepare for battle.  The Dutch fought alongside the British during the battles.  Other factors led to disorganization of the Armada, and some ships were trapped by "small Dutch flyboats."  This led to the Spanish defeat.

The Dutch did not singlehandedly defeat the Spanish Armada, but they instead fought alongside the British.  The efforts of both countries led to the defeat of the Armada.