July 23 (UPI) – The submarine exercises of NATO “Shark Hunt 21” under the leadership of the 6th fleet of the US Navy began on Friday in the North Atlantic, announced the US Navy.

France, Canada, Great Britain and the United States are participating, bringing three submarines, four surface ships and seven aircraft, including the US Navy’s guided missile destroyer USS Roosevelt.

The exercise is being led by U.S. Navy Command Task Force 69, a member of the 6th Fleet, which consists of attack submarines.

“This exercise demonstrates the complexity and lethality of our allied anti-submarine team,” said Captain John Craddock, Commodore, CTF 69.

“The cross-cutting, multinational coordination enhances our ability to promote transatlantic maritime security, provide deterrence and, when necessary, ensure denial of the sea,” said Craddock.

The exercise follows the NATO-led Dynamic Mongoose 21, an interoperability exercise in submarine warfare that was completed on July 9 in the Norwegian Sea.

In February, NATO held another anti-submarine exercise, Dynamic Manta 2021, off the coast of Italy to demonstrate interoperability between submarines and surface vessels from Belgium, France, Greece, Italy, Spain, Turkey and the United States .

The Japan-based aircraft carrier USS Ronald Reagan and its forces also conducted anti-submarine drills in the Arabian Sea this month.