April 7, 2023

China Angered by High Level US-Taiwan Meeting

Following SubMatts' article yesterday China is using another Grey-zone tactic.

The mysterios US Axios website reported April 7, 2023 (2 hous ago):

"Beijing pushes Taiwan Strait claims"

by Rebecca Falconer and Bethany Allen-Ebrahimian


A cargo ship sails in the Taiwan Strait, behind tourists on a lighthouse on Pingtan Island, the closest point to Taiwan, in China's southeast Fujian province on Thursday. Photo: Greg Baker/AFP via Getty Images
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"The U.S. State Department says it's "monitoring closely" a Chinese maritime operation in the Taiwan Strait this week that includes boarding and inspecting ships.

Why it matters: Officials in Taipei believe the unprecedented action in the Taiwan Strait is in reprisal for their president's D.C. meeting with U.S. House Speaker Kevin McCarthy.

  • Taiwan's Maritime and Port Bureau said it had told ship crews not to comply with Chinese maritime "boardings and inspections" requests and instead contact the island's coast guard for protection.

The big picture: Taiwanese authorities lodged an official complaint with Beijing after China's Maritime Safety Administration of Fujian Province announced the three-day operation on Wednesday, just before Taiwan President Tsai Ing-wen met with McCarthy.

  • There were no immediate reports of Chinese officials boarding Taiwanese vessels.
  • Beijing officials had repeatedly warned Congress members not to meet with Tsai and said the visit would "have a severe impact on China-U.S. relations."
  • The patrols came as a bipartisan U.S. delegation led by House Foreign Affairs Chair Michael McCaul (R-Texas) visited Taiwan.

Meanwhile, Taiwan's Defense Ministry reported three Chinese warships had sailed round the self-governing island and two military aircrafts had been detected in its Air Defense Identification Zone on Friday.

  • It was the second straight day Chinese warships and aircrafts had been detected in the area.

What they're saying: A State Department spokesperson told Axios in an email Thursday that U.S. officials "have been very clear that there is no reason for Beijing to turn this transit — which was consistent with longstanding U.S. policy — into something it is not or use it as pretext to overreact."

  • The spokesperson said U.S. communication channels with Chinese officials remain open "and we have consistently urged restraint" and for the status quo of peace in the Asia-Pacific region to remain.
  • "The risk of miscalculation and escalation would have direct impacts to global security and prosperity," the spokesperson added.
  • "The United States shares with other countries an abiding interest in peace and stability across the Taiwan Strait and in the broader Indo-Pacific region, which impact global security and prosperity."

Meanwhile, McCaul told Fox News the operation was "an act of aggression" and his delegation would not be intimidated.

Between the lines: The operation "is definitely an escalation — albeit in a boiling the frog sort-of-way," said John Hemmings, a senior director of U.S. research institute Pacific Forum, in an email Friday.

  • However, it "isn't as dramatic as the military action of the type that Russia took over Crimea in 2014 or more recently, but it’s certainly a strategic use of legalistic-seeming measures to apply pressure on Taiwan."
  • As part of a long-term trend of Beijing's "coercive behavior ... it is disturbing," added Hemmings, pointing to the push to the erosion of rights in Hong Kong, the Asian financial hub that was once the only free Chinese city.
  • Hemmings told Axios in a phone interview Friday that the patrols were a "demonstration of jurisdiction" over a democratically run island China's ruling Communist Party regards as a breakaway province.

Of note: Taiwan is not a member state and Taiwanese officials have faced growing barriers abroad as Beijing becomes more aggressive in its attempts to marginalize an island it sees as its own sovereign territory.

  • The Chinese Communist Party has been steadily eroding Taiwan's ability to formally engage on the world stage and has used economic coercion to punish Taiwan for its informal outreach to other countries since Beijing-skeptical Tsai was elected in 2016.
  • The CCP has actively poached Taiwanese diplomatic partners and the number has declined since Tsai took office from 22 to 13.
  • The Chinese Communist Party said for the first time last year it had sovereignty over the Taiwan Strait — a claim roundly rejected by U.S. and other officials noting that it's an international waterway, where freedoms are guaranteed by international law.

What to watch: Expect to see more action in which Chinese officials conduct exercises they maintain are "normal sovereignty being exercised," per Hemmings."

April 6, 2023

Taiwan: Chinese Shandong Carrier: Submarine Activity


The carrier Shandong with one of its Chinese escorts.
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Over the last 24 hours China’s second aircraft carrier, Shandong, has been exercising with escorts about 300km east off Taiwan’s east coast. This is a political move in reaction to the meeting between Taiwan’s President Tsai Ing-wen and US House Speaker Kevin McCarthy.

Shandong is probably escorted by a group consisiting of a Chinese Type 093 SSN in front, maybe 2 pre-positioned Yuan-class SSKs, a Type 055 cruiser sized destroyer and maybe 3 or 4 smaller escorts (probably Type 054 frigates and/or Type 052D destroyers and/or Type 056 corvettes).


The Shandong Carrier Group entered the western Pacific through the Bashi Channel between southern Taiwan and northern Luzon, Philippines. It was southeast of Taiwan about 20 hours ago. The group then sailed north, putting it due east of Taiwan.
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In reaction Taiwanese P-3C Orion aircraft would have shadowed the Shandong Group. Long range radars in Taiwan and undersea sensors (working to Taiwanese, US and Jpanese stations) would have monitored it. As the Shandong is listed as only having a fixed wing force of 32 J-15 fighters (with only moderate fuel loads because there is no catapult assist on Shandong) Shandong couldn’t dominate Taiwan’s airspace. 

Instead Shandong might complicate the approach of US and allied relief ships and aircraft trying to send troops, ammunition, fuel and food to Taiwan in the buildup to a medium intensity confrontation. So Shandong may be better for blockading shipping and airspace than fighting allied naval units. Submarines might easily torpedo it, missiles hit it, or smartmines sink it in a medium to high intensity war. 

US satellites would be tracking it around the clock as would probably be 2 US SSNs (maybe one from Submarine Squadron 15, based at Guam and another that has been visiting the US naval base at Yokosuka, Japan).

As Submarine Matters has long been advised that the Bashi Channel is a standard patrol area for Japanese Soryu and Oyashio-class submarinese they would also be quietly watching the Shandong Group.

We can expect further Chinese missile, aircraft and warship incursions next time a senior US politician meets the Taiwan's President. 

April 4, 2023

Nuclear Sub Ran Aground: Western Australian Coast

HMS Trenchant docking in the UK
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Nuclear propelled attack submarine HMS Trenchant, of the Trafalgar-class (which preceded the Astutes) is a floating hulk in the UK. Trenchant awaits the huge cost and a UK nuclear waste dump option, involved in removing her radioactive parts. She can then be scrapped.  

In July 1997, HMS Trenchant ran aground off the Western Australian (WA) coast.  While approaching Fleet Base West (HMAS Stirling) just south of Perth, WA,  Trenchant, at a depth of 200m, collided with Australia's continental shelf. She came  to rest on a sloping patch of seafloor. Trenchant was able to free herself, and an inspection by divers (at 200m? shallower? or at Fleet Base West?) reported no significant damage. 

If Trenchant had collided at high speed, like Los Angeles-class USS San Francisco, there could have been fatalities and $100s millions in damage. In 2005 USS San Francisco collided with an undersea mountain ("seamount") with 98 crew injured and tragically one fatality. Photo below:


When, or if, Australia buys Virginia-class submarines, operating out of Fleet Base West, RAN crews will need to get used to high submerged speeds, to avoid collisions. 

Fortunately submarine reactors are towards the stern/back, so, in theory, not  effected by head-on collisions.