Answer :

It was not Elizabeth the first who defeated the Armada, it was actually her sailors. Drake (not sure about his last name) send out fire ships making the Armada Captains get out in the open into the open sea in Calais. The very next day, Drake, along with Howard and other sailors, were at the Battles of Gravelines where they defeated the Armada captains. 
 Hope I helped. 
ValpE

The Spanish Armada was defeated by an English Naval Force, sent by Sir Francis Drake.

--Emilie Xx