The Strait of Friction: A Five-Year Geopolitical and Military Projection of the China-Taiwan Maritime Balance (2026–2031)

Executive summary

The maritime balance of power in the Taiwan Strait is undergoing a profound structural shift, characterized by the People’s Republic of China’s (PRC) intensifying gray-zone coercion and the Republic of China’s (ROC/Taiwan) transition to a highly integrated, asymmetric defense posture. This strategic dynamic is defined by a race between Taiwan’s ability to operationalize localized sea-denial capabilities and Beijing’s capacity to normalize a permanent law enforcement and military presence inside Taiwan’s contiguous zones. As the strategic window between 2026 and 2031 opens, both sides are deploying increasingly sophisticated naval, paramilitary, and regulatory instruments to assert sovereignty, secure critical infrastructure, and alter the operational status quo in the western Pacific.   

The Dual-Track Fleet Strategy and Coast Guard Modernization

A cornerstone of Taipei’s maritime security architecture is the development of a highly modern, dual-use surface fleet designed to bridge the gap between peacetime law enforcement and high-intensity wartime defense. This strategy reached a major milestone on May 15, 2026, with the launch of the Donggang (CG 615) at the Jong Shyn Shipbuilding yard in Kaohsiung. The Donggang represents the twelfth and final hull of the An P’ing-class offshore patrol vessel (OPV) program, completing a critical component of the Coast Guard Administration’s (CGA) fleet renewal. This program was executed under a broader ten-year shipbuilding initiative launched in 2018, which aimed to construct 141 coast guard vessels of various classes, totaling 33,220 metric tons in displacement, to counter growing maritime challenges.   

The An P’ing class is derived directly from the ROC Navy’s Tuo Chiang-class fast missile corvettes, sharing a wave-piercing catamaran hull design optimized for high-speed, highly maneuverable operations in rough littoral waters. Displacing approximately 700 tonnes with an overall length of 65 meters and a beam of 14.8 meters, these vessels utilize waterjet propulsion to achieve top speeds exceeding 40 knots and maintain an operational range of 2,000 nautical miles. The catamaran hull incorporates advanced radar cross-section (RCS) reduction features, inheriting a low-observable signature from its naval ancestry. In peacetime, the Donggang and its sister ships are deployed to enforce maritime law, protect fisheries, and conduct search-and-rescue operations. The Donggang itself is slated for deployment with an eastern mobile coast guard unit to strengthen patrol and response capabilities along Taiwan’s Pacific-facing coast.   

The systematic rollout of this class since December 2020 has provided the CGA with an unprecedented capability to project presence across Taiwan’s maritime zones, establishing a standardized, highly capable baseline for sovereign enforcement.   

Hull Number	Vessel Name	Launch Date	Delivery/Commission Date	Peacetime Fleet Assignment & Status
CG 601	An P’ing (安平)	April 27, 2020	December 11, 2020	Southern Mobile Sector; Active
CG 602	成功 (Chenggong)	December 11, 2020	June 25, 2021	Eastern Mobile Sector; Active
CG 603	淡水 (Danshui)	May 11, 2021	October 28, 2021	Northern Mobile Sector; Active
CG 605	旗津 (Qijin)	October 28, 2021	April 8, 2022	Southern Mobile Sector; First with upgraded Chen Hai rockets
CG 606	八里 (Bali)	April 8, 2022	October 6, 2022	Northern Mobile Sector; First with upgraded gun shield
CG 607	吉安 (Ji’an)	October 6, 2022	May 15, 2023	Eastern Mobile Sector; Active
CG 609	萬里 (Wanli)	May 15, 2023	November 10, 2023	Northern Mobile Sector; Active
CG 610	永康 (Yongkang)	November 10, 2023	June 2, 2024	Southern Mobile Sector; Active
CG 611	長濱 (Changbin)	June 2, 2024	January 10, 2025	Southern Mobile Sector; Active
CG 612	蘇澳 (Su’ao)	January 10, 2025	October 2, 2025	Northern Mobile Sector; Active
CG 613	蘭嶼 (Lanyu)	October 2, 2025	February 13, 2026	Eastern Mobile Sector; Active
CG 615	東港 (Donggang)	May 15, 2026	Scheduled late 2026	Eastern Mobile Sector; Fitting out

The Mechanics and Doctrine of Peace-to-War Fleet Conversion

The core strategic value of the An P’ing class is its pre-engineered “peace-to-war” (平戰轉換) conversion capability. Under the “Defense Operations System Peace-to-War Conversion Operational Guidelines” (防衛作戰體系平戰轉換作業規範) and the “Comprehensive Maritime Mission Support Agreement” (海上任務綜合支援協定書) signed between the Ministry of National Defense and the Ocean Affairs Council, these coast guard vessels are structurally and electronically configured to rapidly transition into guided-missile corvettes during military crises.   

The structural conversion is guided by the “Implementation Plan for Heightened Readiness, Reporting, and Combat Preparations of Coast Guard An P’ing-class Patrol Vessels”. In a crisis scenario, the vessels can be retrofitted within 24 hours at designated naval facilities. Peacetime law enforcement modules are removed to accommodate a Mark 15 Phalanx Close-In Weapon System (CIWS) on the bow and up to four quadruple-launch canisters on the aft deck. These canisters can house a modular loadout of up to sixteen Hsiung Feng II (HF-2) subsonic or Hsiung Feng III (HF-3) supersonic anti-ship missiles.   

 (Shore Radar / Maritime Patrol / Naval Combatant)
          │
          ▼ (在大成戰術數位資訊鏈路 - Da Cheng Tactical Data Link)
[CGA An P'ing-class OPV] ───►
                                           │
                                           ▼ (迅聯系統 / Fire Control System)
                          

To resolve targeting limitations without installing heavy, high-emission active radar systems that would compromise the vessels’ stealth and increase production costs, the ships are equipped with the Da Cheng (大成) tactical digital data link. This system allows converted CGA vessels to receive real-time, over-the-horizon targeting data from shore-based radar networks, naval combatants, and airborne early warning assets. Once target coordinates are received, a specialized four-person Navy detachment deployed to the vessel takes operational control of the weaponry. This detachment comprises:   

• Tactical Command Officer (Commander / Lieutenant Commander – 中校): Responsible for joint theater coordination, rules of engagement compliance, and tactical maneuvers.   
• Systems Operation Supervisor (Master Chief Petty Officer – 士官長): Oversees the Xun-Zhi (迅指) target acquisition system and coordinate link-up.   
• Missile Console Operator (Petty Officer Second Class – 中士): Manages the fire control interface and execution of missile launches.   
• Equipment Room Operator (Petty Officer Third Class – 下士): Monitors system electronics, power distribution, and mechanical diagnostics within the missile bay.   

To support this integration, the Navy provides extensive training to CGA personnel under their mutual support agreement. The Navy has conducted 227 professional education classes, training 200 CGA personnel in 2025 alone across ten specialized course streams, including flight deck operations. The peace-to-war conversion process has been validated through repeated exercises. The lead ship, An P’ing (CG 601), successfully live-fired an HF-2 missile during naval exercises in 2022. In July 2025, the Wanli (CG 609) completed a rapid-retrofit and missile-loading verification at Suao military port, followed by a dual HF-2 missile launch in late 2025 to validate the system’s readiness. By integrating these twelve highly maneuverable, stealthy platforms, the ROC Navy can field a decentralized, survivable missile swarm capable of complicating PLAN amphibious transit planning.   

Undersea Deterrence and the Path of the Indigenous Defense Submarine

While surface capabilities provide visible deterrence, Taiwan’s survival during a blockade or invasion scenario depends heavily on its undersea denial capabilities. This domain is centered on the Indigenous Defense Submarine (IDS) program, known as the “Hai Chang” (海昌) project, managed by CSBC Corporation Taiwan. The prototype vessel, Hai Kun (SS-711, also referred to as “Narwhal”), represents a major engineering and industrial milestone for Taiwan, which has historically lacked domestic submarine design and manufacturing experience.   

The Hai Kun was unveiled in September 2023 and completed its first submerged trials in late January 2026. By May 5, 2026, the vessel had commenced its thirteenth overall sea trial, representing its seventh submerged test. This trial marked its first deployment since President William Lai boarded the submarine for inspection on March 19, 2026. During these sea trials, the submarine departed port accompanied by CSBC’s Endeavor Manta uncrewed surface vessel (USV) and a Navy M109 assault boat to secure the test area.   

                ┌───► Sonar Suite (Northrop Grumman) 
                ├───► Combat Management System (Lockheed Martin) 
├───► Swim-Out Torpedo Tubes (US-supplied) 
                │           └───► Mk-48 Mod 6 Heavyweight Torpedoes 
                │           └───► UGM-84 Sub-Harpoon Anti-Ship Missiles 
                └───► X-Form Rudder Configuration (Sōryū-class derivative) 

The Hai Kun incorporates a hybrid double-single hull structure with an X-form rudder configuration. This design, similar to Japan’s Sōryū class, provides superior maneuverability in the shallow, high-current environments of the Taiwan Strait compared to traditional cruciform rudders. The prototype relies on conventional diesel-electric propulsion and lacks an air-independent propulsion (AIP) system or anechoic coatings. However, its combat capabilities are supported by critical “red-zone” technologies acquired from international partners, including a sonar suite built by Northrop Grumman and a combat management system designed by Lockheed Martin. The vessel’s primary offensive armament consists of US-supplied Mark 48 Mod 6 Advanced Capability (ADCAP) heavyweight torpedoes and submarine-launched Harpoon anti-ship missiles.   

The developmental path of the Hai Kun has faced notable technical and geopolitical challenges. On June 26, 2025, the vessel suffered a hydraulic failure during its second sea trials, jamming the rudder and forcing the crew to manually operate control levers in the stern steering gear room to return to port under tow. These issues, combined with supply chain disruptions, pushed the project past its original November 2025 delivery deadline, resulting in contractual fines for CSBC Corporation.   

The project has also faced intense international pressure. Beijing has consistently pressured global defense firms to prevent the export of submarine components to Taiwan. To bypass these restrictions, Taiwan established a “non-red supply chain” (非紅供應鏈), sourcing parts completely outside the PRC’s industrial sphere. Approximately 40 percent of the submarine’s parts are produced domestically, establishing a local manufacturing baseline for subsequent vessels in the planned eight-boat class. Following the completion of its submerged trials, the Hai Kun will enter a formal Navy evaluation phase, which includes inert torpedo launches and tactical integration exercises, ahead of its scheduled delivery in July 2026.   

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The modernization of Taiwan’s undersea force is intended to replace an aging fleet of submarines that presents a highly unbalanced operational profile.   

Submarine Class	Hull Numbers	Design Origin	Combat Systems & Sensors	Primary Armament	Operational Role (2026–2031)
Hai Kun-class (IDS)	SS-711	Taiwan (hybrid Zwaardvis/Walrus base)	Lockheed Martin CMS; Northrop Grumman sonar	Mk-48 Mod 6 Heavyweight Torpedoes; Sub-Harpoon missiles	Scheduled for July 2026 delivery; designed for frontline sea denial and anti-invasion patrol
Chien Lung-class	SS-793, SS-794	Netherlands (Zwaardvis class); delivered 1980s	Upgraded Dutch/US systems	AEG SUT-264 torpedoes; Mk-48 torpedoes; US Harpoon missiles	Primary active undersea force; undergoing continuous life extension and system upgrades
Guppy II/III-class	SS-791, SS-792	United States (WWII-era fleet boats)	Legacy analog sensors and navigation	Training torpedoes; basic self-defense weapons	Highly restricted operations; used primarily for basic training and ASW target simulation

The Spatial Anatomy of Chinese Gray-Zone Coercion and Lawfare

To counter Taiwan’s asymmetric programs, Beijing is employing a highly coordinated “gray-zone” campaign that utilizes military, paramilitary, and civil resources to challenge Taiwan’s administrative control without triggering a direct kinetic conflict. This campaign is analyzed by the Center for Strategic and International Studies (CSIS) using a three-ring maritime security framework. This framework tracks the proximity, frequency, and strategic depth of Chinese operations across distinct maritime zones, focusing particularly on activities approaching the Taiwan Strait median line and the 24-nautical-mile contiguous zone boundary.   

       │
  (12 Nautical Miles)  ◄─── First Ring: Territorial Waters (Highly protected) 
       │
  (24 Nautical Miles)  ◄─── Second Ring: Contiguous Zone (High CCG hovering frequency) 
       │
        ◄─── Third Ring: Outer Boundary (Regular PLA/CCG crossings) 

Data spanning January 2020 to December 2025 reveals a significant increase in Chinese maritime presence. The daily average of distinct China Coast Guard (CCG) vessels operating in Taiwan’s near waters surged by over 500 percent, while daily incursions into the second security ring more than quadrupled. Spikes in these incursions correlate closely with geopolitical events, such as former US House Speaker Nancy Pelosi’s visit in August 2022 and former President Tsai Ing-wen’s transit of the United States in early 2023. While CCG vessels regularly enter the contiguous zone, they rarely cross the 12-nautical-mile territorial sea boundary, using this positioning to establish a persistent presence while managing the risk of escalation.   

This gray-zone campaign has targeted the legal and administrative status of Taiwan’s outlying islands, particularly Kinmen and Matsu. These islands sit close to the Chinese mainland, and their maritime boundaries are defined by Taiwan’s 1992 Cross-Strait Act, which establishes “prohibited” (inner) and “restricted” (outer) waters. Following a fatal capsizing incident during a CGA chase in February 2024, Beijing declared that it does not recognize these boundaries.   

Since then, the CCG has conducted regular patrols in these waters to assert administrative jurisdiction. From February 2024 to August 2025, CCG vessels entered Kinmen’s restricted waters 85 times, while other Chinese official vessels—including fisheries enforcement, maritime surveillance, and research ships—entered restricted waters 222 times and prohibited waters 293 times. This activity has continued into 2026. During the first quarter of 2026, the CGA documented 15 CCG incursions, primarily focused around Kinmen (12 incidents) and Dongsha Island (3 incidents). On January 19, 2026, amid a strong northeast monsoon producing Force 9 gusts and 3-meter waves, a four-ship CCG formation (hulls 14605, 14529, 14603, and 14533) entered Kinmen’s restricted waters. This forced the CGA to deploy patrol boats in rough conditions to conduct parallel monitoring and escort them out.   

       │
  (2.2 Nautical Miles)  ◄─── Prohibited Waters Boundary (Tacitly observed until 2024) 
       │
  (3.2 Nautical Miles)  ◄─── Restricted Waters Boundary (Regularly breached by CCG) 
       │
  [Kinmen Island / CGA Port]

Chinese operations have also targeted Taiwan’s critical undersea infrastructure. Taiwan is connected to the global telecommunications network via 14 submarine cables landing at four stations: Touchen, Tamsui, Bali, and Fangshan. These cables also link the main island to Kinmen, Matsu, and Penghu. In February 2023, two undersea cables connecting Matsu were severed by a Chinese fishing vessel and an unidentified ship, disrupting local communications, medical services, and administrative operations. This vulnerability is compounded by Chinese sand dredgers operating near Matsu and Kinmen. CGA expulsions of these dredgers rose from 600 in 2019 to nearly 4,000 in 2020. This dredging activity strips the seabed, exposing subsea cables and increasing the risk of damage. While Taiwan relies on backups like the ST-2 commercial satellite, which is expected to serve until 2029, its overall bandwidth remains vulnerable to physical disruption.   

In response to these maritime activities, the Legislative Yuan passed seven amendments to its maritime security laws, which took effect on January 7, 2026. These regulations impose a 10 million NTD fine on vessels that deactivate their AIS or conceal their identities in Taiwanese waters, alongside fines ranging from 2 million to 100 million NTD for damaging undersea cables. The amendments also authorize the Maritime and Port Bureau to seize foreign vessels that fail to follow orders to depart Taiwan’s ports within three months if their presence disrupts port operations.   

Complementing these maritime operations is an active oceanographic mapping campaign. Beijing has increased its use of civilian and state-run research vessels to survey the waters surrounding Taiwan, collecting bathymetric and hydrological data. On May 7, 2026, the CGA detected the Chinese research ship Tongji operating 29 nautical miles southeast of Taiwan’s southern tip, deploying scientific instruments. The CGA used radio warnings and wave disruptions to escort the vessel back to the PRC on May 11. This follows the expulsion of three other Chinese research vessels—Yanping No. 2, Xiangyanghong 1, and Dongfanghong 3—in 2025 for mapping critical sea lanes along Taiwan’s east coast. The hydrological data collected from these surveys is highly valuable for submarine navigation and anti-submarine warfare planning in deep-water zones.   

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Asymmetric Defenses, Legislative Gridlock, and Geopolitical Re-alignments

To address its numerical disadvantage against the PLA, Taiwan is shifting toward a “deterrence by denial” strategy. A key component of this approach is the acquisition of mobile land-based strike systems, including 111 High Mobility Artillery Rocket Systems (HIMARS) purchased from the United States. These launchers are equipped with M57 Army Tactical Missile Systems (ATACMS), which have a range of 300 kilometers, allowing them to strike targets across much of China’s Fujian Province.   

In mid-2026, the ROC military finalized plans to deploy HIMARS units to critical outlying islands, including Penghu and Dongyin. This forward deployment is designed to establish a “dead zone” along the Chinese coast, targeting PLA concentration areas, embarkation ports, and logistics hubs during the early phases of an amphibious operation. With a transit time of approximately seven minutes to mainland targets, HIMARS provides Taiwan with a rapid counterstrike option. These systems utilize Tactical Mission Network (TMN) software to facilitate fast intelligence sharing across military branches, and they can be synchronized with the proposed T-Dome multilayered air defense system to coordinate deep counterstrikes. To maximize survivability against satellite detection and pre-emptive strikes, Taiwan’s military doctrine emphasizes regular rotation of launcher locations and “shoot-run-reload” tactics.   

 ──► ──►
                                                            │
  ┌─────────────────────────────────────────────────────────┘
  ▼
 ──► (7-Min Flight / 300 km Range) ──►

Despite the strategic role of these asymmetric assets, Taiwan’s modernization is constrained by a substantial US foreign military sales backlog and domestic political divisions in Taipei. The backlog of purchased US arms currently delayed for delivery to Taiwan stands at approximately 32 billion USD. This delay has fueled political debate in the Legislative Yuan, where the opposition Kuomintang (KMT) and Taiwan People’s Party (TPP) have voted six times to block the review of the Special Budget for Asymmetric War.   

This budget debate centers on total funding and procurement items. The Cabinet and the ruling Democratic Progressive Party (DPP) have proposed a 40 billion USD package, which includes:   

• 11.1 billion USD for the US arms package approved in December 2025.   
• 20.2 billion USD for future US arms purchases.   
• 9.5 billion USD for Taiwanese domestic arms manufacturing.   

The KMT and TPP have introduced alternative bills capping the allocation at 12 billion USD. They argue that approving long-term funding while existing purchases remain undelivered leads to fiscal waste, and suggest prioritizing systems with shorter delivery timelines. US officials, including Indo-Pacific Commander Admiral Samuel Paparo and American Institute in Taiwan (AIT) Director Raymond Greene, have urged the Legislative Yuan to pass the budget, warning that prolonged delays could affect international perceptions of Taiwan’s commitment to its own defense.   

These external delays and legislative debates occur alongside growing concerns regarding internal security. In December 2025, Taiwanese prosecutors indicted a former marine on charges of espionage for the PRC. Investigators revealed that PRC intelligence agencies have targeted Taiwanese military personnel, recruiting some to sign loyalty pledges or film videos promising to support the PLA during an invasion. These videos are used by PRC handlers for blackmail and are distributed online to weaken public confidence in the military’s resolve. This campaign appears to have had an impact: a poll conducted by the government-funded Institute for National Defense and Security Research (INDSR) showed that the percentage of Taiwanese respondents expressing “strong confidence” in the military fell from 20 percent in September 2024 to 14 percent in March 2025.   

These cross-strait dynamics are also driving broader geopolitical realignments in the Indo-Pacific. During the Balikatan 2026 joint military exercises, Japan participated actively for the first time alongside US and Philippine forces. The exercises featured the rapid deployment of mobile sea-denial systems, including the US Navy-Marine Corps Expeditionary Ship Interdiction System (NMESIS) and Japan’s Type 88 anti-ship missiles, to the Batanes Islands in the Luzon Strait. This positioning is designed to restrict the PLAN’s ability to transit the first island chain during a conflict.   

In response, the PLA Southern Theater Command deployed a surface task group—including a Type 055 guided-missile destroyer—east of the Luzon Strait, while the aircraft carrier Liaoning transited south through the Taiwan Strait on April 20, 2026, to demonstrate its ability to project power despite allied containment efforts.   

These developments align with the US National Defense Strategy, which emphasizes enabling regional allies to take primary responsibility for their local defense while reorienting US forces toward high-end deterrence. In a conflict over Taiwan, US planners are increasingly focusing on the “Hellscape” concept. This operational concept involves deploying thousands of low-cost, attritable unmanned aerial, surface, and undersea platforms to saturate the Taiwan Strait, making it impassable for an invasion fleet.   

This asymmetric, unmanned barrier is designed to disrupt an amphibious assault, allowing high-end US assets to operate outside China’s immediate missile range and focus on global maritime interdiction and economic measures. By shifting the primary sea-denial burden to an unmanned network and local forces, the strategy aims to complicate Beijing’s operational planning and strengthen regional deterrence.   

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Conclusions and Strategic Outlook (2026–2031)

The cross-strait military balance between 2026 and 2031 will be defined by the interaction of Taiwan’s asymmetric programs, domestic political constraints, and China’s gray-zone campaigns. The completion of the 12-ship An P’ing-class OPV program and the scheduled delivery of the first indigenous submarine, Hai Kun, in mid-2026 provide Taiwan with valuable tools for localized sea denial. However, the military effectiveness of these programs depends on Taiwan’s ability to resolve its domestic legislative gridlock. Without steady, long-term funding for missile stockpiles and system integration, Taiwan’s surface and subsurface assets may lack the ammunition reserves and logistical support needed to sustain a prolonged defense.   

At the same time, Beijing’s gray-zone campaign is moving toward a more structured, assertive posture. By using the CCG and scientific research vessels to challenge Taiwan’s administrative jurisdiction around Kinmen, Matsu, and Dongsha, the PRC is seeking to normalize a continuous presence inside Taiwan’s contiguous zones. This approach aims to slowly degrade Taiwan’s operational readiness and establish administrative control without triggering a direct military conflict.   

To counter this persistent pressure, Taiwan must enforce its updated maritime security laws, strengthen the resilience of its undersea communications, and ensure its defense programs remain funded and integrated. Ultimately, Taiwan’s ability to maintain deterrence over the next five years will depend on whether it can successfully integrate its coast guard and naval assets, secure its critical infrastructure, and coordinate effectively with regional allies to meet China’s evolving gray-zone and military challenges.   

---

Entity	Role/Type	Main Weapons/Systems	Key Interconnections & Dependencies	Status
An P’ing-class OPV	Coast Guard / Naval Corvettes	Chen Hai Rockets, 20mm cannon, 24 hours conversion to carry 16 HF-2/HF-3 missiles	↑ Depends on Navy Command for 4-person detachment and targeting data via Da Cheng Link	Completed (12/12 hulls launched as of May 15, 2026 with Donggang)
Hai Kun (SS-711)	Subsurface Sea Denial	Mk-48 Torpedoes, Sub-Harpoon, Lockheed Martin CMS, Northrop Grumman Sonar	↔ Decoupling from PRC via “Non-Red Supply Chain” (40% domestic parts)	13th Sea Trial (7th submerged) completed May 5, 2026; delivery targeted July 2026
HIMARS / ATACMS	Land-based Strike & Counterstrike	111 HIMARS launchers, 504 ATACMS missiles (300 km range), TMN software	↑ Depends on US deliveries (USD 32 billion backlog) and Special Budget approval	Deployments planned for Penghu and Dongyin; first batch received October 2024
Undersea Telecommunications Cables	Critical Information Infrastructure	14 subsea cables, ST-2 Commercial Satellite (until 2029), 4 landing stations	↓ Highly vulnerable to CCG / civilian vessel sabotage and sand dredging	Protected by new January 7, 2026 maritime transparency laws
China Coast Guard (CCG)	Gray-Zone Coercion & Lawfare	Water cannons, law enforcement patrols, multi-ship formations	↔ Directly targets outlying island boundaries and subsea cable vulnerability	Persistent patrols; 15 incursions in Jan-Mar 2026 (Kinmen / Dongsha)

An P’ing-class Offshore Patrol Vessel (OPV) Program – Kaohsiung, Taiwan

Category → Sub-Metric	Value / Status / Interconnection Notes
📊 Program Scope & Cost	141 coast guard vessels built over 10 years (launched 2018), totaling 33,220 metric tons “
↳ Class Vessel Count	12 large offshore patrol vessels completed
↳ Hull Dimensions & Displacement	Length: 65 meters • Beam: 14.8 meters • Displacement: ~700 tonnes
↳ Performance Metrics	Speed: >40 knots • Range: 2,000 nautical miles • Sea keeping: Up to Beaufort Force 9
⚙️ Propulsion & Stealth	Waterjet propulsion • Reduced radar cross-section (RCS) design features
🛡️ Tactical Armament (Peacetime)	Chen Hai Rockets • 20mm cannon
🛡️ Tactical Armament (Wartime)	Quick retrofit within 24 hours with Mark 15 Phalanx CIWS and up to 16 anti-ship missiles (Hsiung Feng II/III)
🔗 Joint Navy Interconnection	Converted vessels command passed to a 4-person Navy detachment (Tactical Command Officer: 中校 • Systems Supervisor: 士官長 • Missile Operator: 中士 • Equipment Operator: 下士) ↔ “
🔗 Tactical Link Systems	Equipped with Da Cheng tactical digital data link for targeting data receipt ↔ ↑ Depends on: Navy Air/Surface/Shore Target Acquisition Systems
🛡️ Operational Validation	Fired 2 Hsiung Feng II (HF-2) missiles during 2025 precision weapon training to verify peace-to-war conversion
↳ Verification History	An P’ing (CG 601) fired HF-2 in 2022 ; Wanli (CG 609) completed loading/firing verification in July/late 2025
↳ Personnel Integration	227 classes of professional education delivered by Navy to train 200 CGA personnel in 2025
📋 Deployment Status	Final hull Donggang (CG 615) launched May 15, 2026; scheduled for Eastern Mobile Coast Guard Sector deployment

Indigenous Defense Submarine (IDS) Program / Hai Kun (SS-711) – Kaohsiung Harbor, Taiwan

Category → Sub-Metric	Value / Status / Interconnection Notes
📊 Financial Investment	Approximately USD 1.54 billion for prototype construction “
↳ Domestic Sourcing Ratio	40 percent of components sourced domestically within Taiwan
⚙️ Hull Design & Dimensions	Hybrid double-single hull • Length: 79.25 meters (260 feet) • Weight: 2,460 to 2,950 tons
↳ Control Surfaces	X-form rudder configuration (resembling Japan’s Sōryū-class)
⚙️ Propulsion System	Conventional diesel-electric propulsion • No air-independent propulsion (AIP) • No anechoic coating
↳ Speed & Range Performance	Surface Speed: 8 knots • Submerged Speed: 17 knots • Range: 11,000 kilometers
🛠️ Combat Systems & Sensors	combat management system from Lockheed Martin • sonar suite from Northrop Grumman
🛡️ Offensive Armament	US-supplied Mark 48 Mod 6 Heavyweight Torpedoes • submarine-launched Harpoon anti-ship missiles
🔗 Procurement Interconnection	Built entirely using a “Non-Red Supply Chain” (非紅供應鏈) to bypass PRC political blockades ↔ ↑ Depends on: International Democratic Ally Exports
⚠️ Technical Setbacks	Rudder hydraulic failure on June 26, 2025 forcing manual recovery to port • Missed November 2025 delivery target resulting in contract fines for CSBC Corporation
📋 Sea Trial Progress	13th sea trial (7th submerged test) commenced May 5, 2026 escorted by CSBC Endeavor Manta USV and Navy M109 boat
↳ Next Milestones	Inert torpedo launch trials ashore completed; upcoming underwater inert torpedo launches
📋 Final Evaluation Status	Targeted delivery to the Navy in July 2026 for tactical evaluation (live-fire, multi-vessel coordination)

HIMARS and ATACMS Procurement Program – Outlying Islands, Taiwan

Category → Sub-Metric	Value / Status / Interconnection Notes
📊 Procurement Scope	111 HIMARS launchers and 504 M57 ATACMS missiles purchased/planned “
↳ Package Value & Elements	Part of a USD 11.1 billion arms package approved in December 2025, including Tactical Mission Network (TMN) software
↳ Combat Capabilities	Strike range up to 300 km • Precision strike margin of error: ~10 meters • Flight time to target: ~7 minutes
⚙️ Interoperability Software	TMN software enables cross-service intelligence sharing and coordinates with proposed T-Dome air defense
🛡️ Strategic Deployment Plan	Mobile launchers planned for forward deployment to Penghu and Dongyin islands to establish a “dead zone” in Fujian
↳ Operational Targets	Staging areas in Quanzhou, Xiamen, Zhangzhou, Wenzhou, and Fuzhou • Stationary PLA amphibious vessels
🔗 Supply Chain & Funding Dependencies	Subject to a USD 32 billion US arms delivery backlog ↔ ↑ Depends on: US Defense Industrial Base Output
🔗 Legislative Budget Conflict	Opposition KMT and TPP blocked the Special Budget for Asymmetric War six times as of January 9, 2026 ↔ ↓ Impacts: Procurement Funding Continuity
↳ Budget Alternatives	DPP: USD 40 billion total (incl. USD 20.2 billion future arms + USD 9.5 billion domestic defense) • KMT/TPP: Capped at USD 12 billion
📋 Operational Status	First batch of M142 HIMARS launchers received October 2024; live-fire training completed May 12, 2025

Undersea Telecommunications Cable Infrastructure – Coastal/Offshore Waters, Taiwan

Category → Sub-Metric	Value / Status / Interconnection Notes
📊 Infrastructure Scope	14 international submarine cables landing across 4 mainland landing stations (Touchen, Tamsui, Bali, Fangshan) “
↳ Offshore Island Links	Subsea cable connections linking Taiwan main island to Kinmen, Matsu, and Penghu islands
⚠️ Historical Disruption	2 Matsu-Taiwan undersea cables severed in February 2023 by CCP fishing vessel and unidentified ship
↳ Operational Consequences	Local landlines, mobile, and broadband blocked; severely degraded military communication resilience
⚙️ Maritime Interference Threats	Illegal Chinese sand dredgers exposing subsea cables buried 2 meters under the seabed
↳ Enforcement Expulsions	CGA expulsions of sand dredgers surged from 600 times in 2019 to nearly 4,000 times in 2020
🔗 Infrastructure Backup	ST-2 Commercial Satellite serves as communications backup, expected to operate until 2029 ↔ ↔
🛡️ Legislative Protections	7 amendments taking effect January 7, 2026 imposing 2 million to 100 million NTD fines for cable damage
↳ Maritime Transparency Rule	10 million NTD fine for turning off AIS or concealing vessel identities in Taiwanese waters

China Coast Guard (CCG) Gray-Zone Operations – Taiwan Strait / Outlying Islands

Category → Sub-Metric	Value / Status / Interconnection Notes
📊 Incursion Frequency Surge	Average daily CCG vessel presence near Taiwan’s waters increased by >500 percent from January 2020 to December 2025 “
↳ Second Ring Incursions	Daily incursions into the 24-nautical-mile contiguous zone boundary (second security ring) more than quadrupled on average
⚙️ Lawfare & Boundary Rejection	Official rejection of Kinmen prohibited and restricted waters boundaries following a fatal capsizing on February 14, 2024
🛡️ Kinmen Presence Metrics	85 CCG incursions and 515 other official Chinese vessel incursions (222 restricted, 293 prohibited) from Feb 2024 to Aug 2025
↳ Recent Incursions	15 CCG incursions documented in Q1 2026 (12 around Kinmen, 3 around Dongsha)
🔗 Hybrid Escalation Pattern	Regular coordination with civilian fishing vessels and scientific research vessels to map seabed and test Taiwan’s response ↔ ↓ Impacts: Taiwan Defense Readiness
↳ Scientific Survey Incursions	Research vessel Tongji expelled May 11, 2026 after conducting survey 29 NM off southern Taiwan
↳ Historic expulsions	Research vessels Yanping No. 2, Xiangyanghong 1, and Dongfanghong 3 expelled in 2025
📋 Weather Maneuver Capability	CCG deployment of a 4-ship formation (hulls 14605, 14529, 14603, and 14533) into Kinmen restricted waters on January 19, 2026 during Force 9 gusts

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