Armada, as in "The Spanish armada".
A fleet.
A convoy
A fleet of warships is usually called a fleet, and it includes many auxiliary vessels as well as warships to keep the fleet supplied and operational. Over the centuries smaller units of warships have been known by various names; task force, task group, flotilla, squadron, armada, and others.
"Fleet" can be used for both warships and peaceable merchant ships. "Convoy" requires some warships, but may involve merchant ships being protected by the warships.
A large group of warships is called a fleet. Fleet typically consists of multiple types of ships including battleships, aircraft carriers, destroyers, and submarines, and is often organized by a navy for specific military operations.
The collective nouns are a fleet of warships, an armada of warships, a flotilla of warships.
a flotilla of warships
I think your referring to the Spanish Armada.
Admiral
Fleet?!?
A collection or group of ships is called a fleet. There are more specific terms for a group of ships. A substantial group of warships is called a naval fleet while a group of small ships is called a flotilla.
Admiral