Tuesday, June 21, 2022

U.S. Navy gathers best destroyers in Japan to hunt Chinese submarines

 Adding helicopter hangars to ships expands area of operation across Indo-Pacific


An MH-60R helicopter is seen aboard the USS Ralph Johnson, an Arleigh Burke-class guided-missile destroyer based in Yokosuka, during a sail through the South China Sea in January.   © 
U.S. Navy

KEN MORIYASU, Nikkei Asia diplomatic correspondentMAY 10, 2022 06:00 JST

TOKYO -- Off the coast of Japan's glittering capital, the U.S. Navy recently dropped a hint about its shifting strategy in Asia.

In March, the Navy and the Japan Maritime Self-Defense Force conducted a torpedo drill in Tokyo Bay for the first time. From the air, an MH-60R helicopter launched an inert training torpedo into Japanese waters, simulating an attack on a submarine. Previously, all similar torpedo exercises had been conducted off the shores of San Diego.

The drill came as the U.S. Navy quietly reshuffles its ship roster in Japan, bringing newer and more capable vessels closer to the Taiwan Strait and reflecting the changing priorities of its global mission.

Since last summer, five Arleigh Burke-class guided-missile destroyers have arrived in Yokosuka -- the largest overseas U.S. naval installation in the world, about an hour's drive south of Tokyo. They have replaced ships such as the USS John S. McCain and USS Curtis Wilbur, which had been forward-deployed to Japan for a quarter of a century.

Whereas the old ships were focused on ballistic missile defense -- and thus deployed with the North Korean threat in mind -- the newer vessels are expected to multitask. They could engage in anti-aircraft warfare against China's advanced fighters, stalk submarines and defend against the latest anti-ship cruise missiles, all while keeping an eye out for ballistic missiles as well.


The  Arleigh Burke-class guided-missile destroyer USS Dewey (DDG 105), one of the newest additions to Destroyer Squadron (DESRON) 15, moors alongside USS The Sullivans (DDG 68) in Yokosuka in September 2021.   © U.S. Navy

Four of the new destroyers are the Flight IIA version of the ship and are equipped with helicopter hangars. These can accommodate MH-60Rs like the ones used in the torpedo drill. Equipped with a sonobuoy launcher, various radar, torpedoes and anti-ship missiles, the MH-60R can find, track and destroy all modern subsurface threats. It is considered the primary tool for hunting enemy submarines, and is expected to be a key part of the Navy's operations against great power rivals China and Russia.

In the Tokyo Bay exercise, the helicopters flew from land bases in Japan. But the new hangar-equipped destroyers give the Navy a much longer arm.

"U.S. Navy Flight IIA destroyers, with embarked helicopters and aircrews, greatly expand the range and capabilities of anti-submarine warfare throughout the Indo-Pacific with their ability to carry helicopters to areas beyond the reach of land-based helicopters," Lt. Mark Langford, the U.S. 7th Fleet's deputy public affairs officer, told Nikkei Asia.

Of the new ships in Yokosuka, the USS Howard, the USS Dewey, the USS Ralph Johnson and the USS Rafael Peralta are Flight IIA versions. They are equipped with two hangars that can both hold MH-60 variants, support equipment, repair shops and store rooms. The ships have added accommodation space for the air group.

"A principal difference between the earlier Arleigh Burke-class ships and the more-recent Flight IIA ships is the helicopter hangar," a U.S. naval analyst told Nikkei. While the earlier ships also have a helicopter landing pad and can refuel choppers, "they cannot embark a helicopter for an extended period of time," the analyst explained.

"With its hangar, a Flight IIA ship can embark a helicopter of its own and thus always have one on hand."


The one new ship without a hangar is the USS Higgins, which is categorized as a Flight II, a version earlier. But the Higgins has been outfitted with the latest Baseline 9 Aegis combat system, which allows it to act as a shield against faster incoming missiles.

There are now eight Arleigh Burke-class destroyers in Yokosuka, alongside the flagship USS Blue Ridge, the USS Ronald Reagan -- the Navy's sole forward-deployed aircraft carrier -- and three guided-missile cruisers.

With 13 American warships, Yokosuka is widely considered one of the most strategically important bases in the U.S. military. Its importance has only increased under the Joe Biden administration, which considers China the "pacing threat" amid concerns Beijing might someday try to unify self-ruled Taiwan with the mainland.

From Yokosuka, it takes a day and a half to sail to the Taiwan Strait at a speed of 30 knots, according to an estimate by the U.S. Congressional Research Service. This is faster than Guam (1.9 days), Singapore (2.5 days), Pearl Harbor, Hawaii (5.9 days), Everett, Washington (7.3 days) or San Diego (8.2 days).

The U.S. Navy's other major base in Japan is in Sasebo, in the southwestern prefecture of Nagasaki. This site is even closer to Taiwan and a further nine American ships are based there. Five of these ships are large amphibious vessels that are tasked with picking up and delivering hundreds of U.S. Marines in Okinawa to the battlefield in a contingency.


In the past, the U.S. has faced strong headwinds when increasing its footprint in Japan. For instance, when the USS George Washington arrived in Yokosuka as the first nuclear-powered carrier to be forward-deployed there, it was greeted by hundreds of protesters.

But recent tensions in the region have changed the atmosphere. In a Nikkei poll conducted in April last year, 74% of respondents said they supported Japan's engagement in pursuing peace and stability in the Taiwan Strait, while only 13% were opposed.

In a report titled Defense Primer: Geography, Strategy, and U.S. Force Design, the Congressional Research Service identified the key element of U.S. national strategy as "preventing the emergence of regional hegemons in Eurasia."

Given the amount of people, resources and economic activity in the region, a regional hegemon in Eurasia would represent a concentration of power large enough to threaten vital U.S. interests, the CRS notes.

But recent maritime activity by China and Russia has added a sense of urgency to U.S. naval operations.

Last October, 10 naval vessels belonging to China and Russia passed through a narrow chokepoint in the north of Japan, heading eastward toward the Pacific Ocean.

The Tsugaru Strait, which sits between Japan's main island of Honshu and the northern island of Hokkaido, is just 19.5 km wide at its narrowest point. But the center of the waterway is designated as international waters -- a legacy of the Cold War.

By limiting Japan's territorial waters to just 3 nautical miles from shore, as opposed to the customary 12, this allowed U.S. ships carrying nuclear weapons to pass without violating Japan's "Three Non-Nuclear Principles," one of which prohibits the introduction of nuclear arms into Japanese territory.

This was the first time Chinese and Russian ships jointly passed these waters.

Several days later, the same fleet of ships needled through a southern chokepoint, the Osumi Strait. This waterway lies between the Osumi Peninsula and Tanegashima Island, both in Kagoshima Prefecture.

Technically, the vessels did not violate Japanese territorial waters. But with the two passages, the Chinese and Russian ships in effect circumnavigated the nation in an unprecedented provocative move.

 


Submarines from the Chinese People's Liberation Army Navy take part in a military display in the South China Sea in 2018.   © Reuters

China has overtaken the U.S. to become the world's largest navy in terms of ship numbers. While it is shifting its most capable vessels closer to the Taiwan Strait, the U.S. military does not have the resources to expand its naval fleet to match China in sheer ship count.

Instead, the strategy is to operate together with allies and partners to maintain dominance in the Indo-Pacific.

At a congressional hearing on May 3, Chairman of the Joint Chiefs of Staff Mark Milley, the highest ranking U.S. military officer, said that "it would always be nice to have more ships. But the fact of the matter is, the most important thing is to have the ships that we do have, have them in a readiness status, have them with the manning, the training, and the equipping, have them in a very significant readiness status.

"We have allies and partners. China doesn't. The Japanese navy, the Australian navy, the other allies and partners that would probably work with the United States," Milley said.

On Taiwan, Milley said Chinese President Xi Jinping's objective is to have his military prepared "capability wise" to seize the island by force.

"That's not the same to say he's actually going to invade," Milley said, calling such a seizure of Taiwan "a very tall order."

But the target on the wall is 2027, the Army general said. "We have to keep that in mind as we go into the future."

https://asia.nikkei.com/Spotlight/Asia-Insight/U.S.-Navy-gathers-best-destroyers-in-Japan-to-hunt-Chinese-submarines


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