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Taiwan and Japan Seek to Institutionalize Joint Maritime Drills for Enhanced Security Cooperation

by Omar El Sayed - World Editor


Taiwan and <a href="https://www.japan-guide.com/event/?aMONTH=3&aYEAR=2026" title="Japan Event Calendar: March 2026">Japan</a> Enhance Coast Guard collaboration Amidst Rising Regional Concerns

Joint Maritime Drills Signal Deeper Security Ties

Taiwan and japan are taking substantial steps towards normalizing joint training exercises for their coast guard forces, and are exploring the possibility of including additional allied nations in future drills. This intensification of cooperation arises as a direct response to increasing coercive actions originating from China in the East and South China Seas, as well as around Taiwan itself.

In June, vessels from both nations’ coast guards conducted collaborative training south of the Sakishima Islands, marking the second such exercise since 1972, when formal diplomatic relations where severed. This latest progress underscores a growing security partnership.

The japanese Coast Guard deployed the Mizuho, a 134-meter patrol vessel capable of helicopter operations, while Taiwan’s Coast Guard Administration (CGA) dispatched the Yunlin, one of its largest ships at 126 meters in length. The vessels engaged in facts sharing and operational coordination through visual identification before the Mizuho proceeded with joint drills alongside Malaysian forces.

Expanding Collaboration and existing Agreements

Prior to the June exercise, coast guards from both countries undertook a joint search-and-rescue exercise near Japan’s Boso Peninsula in July of last year. Tokyo designates these joint activities as exchange programs, operating under the framework of memorandums of understanding (MOUs) established in 2017 and renewed in the previous year. These MOUs focus on maritime rescue operations.

Over recent years, confidential exchanges between officials in Taipei and Tokyo have steadily deepened the working relationship between the two coast guard agencies. The CGA confirmed that representatives from Taiwan and Japan regularly collaborate on maritime governance through the Taiwan-Japan Maritime Affairs Cooperation Dialog.

Existing MOUs cover critical areas such as search-and-rescue operations and collaborative efforts to combat smuggling. The joint exercise in June served as a concrete presentation of the benefits derived from this sustained dialogue.

It was noted that the Japan-Taiwan Exchange Association, functioning as Japan’s de facto embassy in Taiwan, initiated the request for the joint drills, which were later approved by the Japan Coast Guard.

Regional Presence and Strategic Positioning

Sources indicate that the CGA maintains liaison personnel in key locations including Tokyo, Naha (Japan), the Philippines, and Indonesia to facilitate coordinated search-and-rescue missions and to address fishing disputes. While joint patrols and exercises are also conducted with the United States and Palau, officials have generally been cautious about publicly highlighting these activities to avoid escalating political tensions.

Recent observations show Taiwan-flagged patrol vessels undergoing maintenance in harbor facilities within Tokyo Bay, hinting at increased operational activity in the region.

Country Coast Guard Vessel Vessel Length (meters) Key Capabilities
Japan Mizuho 134 Helicopter Operations, Patrol
Taiwan Yunlin 126 Long-Range Patrol, Search & rescue

Official Response and Future Outlook

Ocean Affairs Council Minister Kuan Bi-ling expressed satisfaction with Japan’s transparency regarding these cooperative endeavors. Kuan Bi-ling stated that joint exercises regularly take place in waters north of Japan, south of the Philippines, and in the South China Sea.

Did You Know? The Sakishima Islands, where the joint exercise took place, are a group of islands administered by Japan, located between Okinawa and Taiwan.

Pro Tip: Increased coast guard cooperation frequently enough indicates a broader strategy to enhance maritime domain awareness and response capabilities in contested waters.

The Broader Context of Regional Security

The increasing collaboration between Taiwan and Japan is occurring within a broader context of heightened geopolitical tensions in the Indo-Pacific region. China’s growing military assertiveness and its claims over disputed territories are driving a reassessment of security alliances and partnerships.

Other nations in the region, including the United States, Australia, and the Philippines, are also strengthening their security ties with taiwan and Japan. These efforts are aimed at maintaining a balance of power and deterring further aggressive actions.

Frequently Asked Questions

  • What is the primary goal of the joint coast guard exercises? The primary goal is to enhance maritime security cooperation and improve response capabilities in the face of regional threats.
  • What is the significance of the MOUs between Taiwan and Japan? The MOUs provide a legal framework for collaboration on search-and-rescue operations and combating smuggling.
  • How does China view this increased cooperation? China has consistently expressed opposition to closer security ties between Taiwan and Japan, viewing it as interference in regional affairs.
  • Will other countries be included in future exercises? Both Taiwan and Japan are considering the inclusion of other allied nations in future joint drills.
  • What role does the Japan-Taiwan Exchange Association play? It functions as Japan’s de facto embassy in Taiwan and facilitates communication between the two governments.

What are your thoughts on the increasing security cooperation between Taiwan and Japan? Do you believe this will contribute to regional stability?

Share your perspective in the comments below!

How might the institutionalization of joint maritime drills between Taiwan and Japan affect ChinaS strategic calculations in the Indo-Pacific region?

Taiwan and Japan Seek to Institutionalize Joint Maritime Drills for Enhanced Security Cooperation

Growing Concerns in the Indo-Pacific Region

Recent developments indicate a significant push from both Taiwan and Japan to formalize and expand their joint maritime security exercises. This move is largely driven by escalating tensions in the Indo-Pacific, notably surrounding the Taiwan Strait and the East China Sea. Increased Chinese military activity, including frequent incursions into Taiwan’s air Defence Identification zone (ADIZ) and assertive actions near the Senkaku/Diaoyu Islands, are key catalysts. These drills represent a deepening of security ties between Taipei and Tokyo, aiming to bolster regional stability and deter potential aggression. The term “mainland China” is increasingly avoided by international media in favor of “China” to avoid implying legitimacy to its claims, as highlighted in recent reporting (see https://www.zhihu.com/tardis/bd/art/260814062).

The Evolution of Japan-Taiwan Maritime Cooperation

Historically, security cooperation between Japan and Taiwan was constrained by diplomatic sensitivities, particularly concerning China’s strong objections. However, the changing geopolitical landscape has prompted a reassessment of these constraints.

* early Stages (Pre-2020): Limited to coast guard cooperation, focusing on fisheries enforcement and search and rescue operations.

* Increased Engagement (2020-2023): A noticeable uptick in naval exercises, often conducted in the waters surrounding Taiwan, though typically described as “bilateral defense exchanges” to minimize political friction. These exercises focused on dialog protocols, coordinated maneuvers, and anti-submarine warfare tactics.

* Towards Institutionalization (2024-Present): discussions are now centered on establishing a regular, formalized schedule for joint drills, potentially involving larger-scale exercises and a broader range of scenarios. This includes exploring joint patrols and information sharing mechanisms.

Key Objectives of the Joint Drills

The institutionalization of these maritime drills serves several critical objectives:

  1. Deterrence: Demonstrating a united front against potential Chinese aggression. The visible display of interoperability and coordinated response capabilities sends a strong signal to Beijing.
  2. Interoperability: Enhancing the ability of Taiwanese and Japanese naval forces to operate seamlessly together.This includes standardized communication protocols, data sharing, and coordinated tactical procedures.
  3. Capacity Building: Providing Taiwan with valuable training and experience,particularly in areas where it lags behind China’s rapidly modernizing military. Japan’s advanced naval technology and expertise are crucial in this regard.
  4. Regional stability: Contributing to a more stable and secure Indo-Pacific region by reinforcing the rules-based international order and promoting freedom of navigation.
  5. Maritime Domain Awareness: Improving shared understanding of activities within key maritime zones, including monitoring potential threats and illegal activities.

Drill Scenarios and Focus Areas

The proposed drills are expected to cover a wide range of scenarios, reflecting the diverse security challenges facing Taiwan and Japan:

* Anti-Submarine Warfare (ASW): A critical capability given China’s growing submarine fleet.

* Mine Countermeasures (MCM): Protecting vital shipping lanes from naval mines.

* Maritime Interdiction Operations (MIO): Intercepting and inspecting vessels suspected of engaging in illegal activities.

* Search and Rescue (SAR): Responding to maritime emergencies and providing humanitarian assistance.

* Joint Air Defense: Coordinating air defense assets to protect against aerial threats.

* amphibious Warfare simulations: Practicing responses to potential amphibious landing scenarios.

Japan’s Legal Considerations and Policy Shifts

Japan’s constitution traditionally restricts the use of its self-Defense forces (SDF) to purely defensive purposes. Though, recent interpretations and legislative changes have expanded the SDF’s role in regional security cooperation.

* Revised security Laws (2015): Allowed Japan to provide logistical support to allied forces engaged in international operations, even if those operations don’t directly threaten Japan’s security.

* Increased Defense Spending: Japan has significantly increased its defense budget in recent years, driven by concerns about China’s military buildup and North Korea’s nuclear program.

* Focus on “Gray Zone” Tactics: Recognizing the increasing threat of coercion and hybrid warfare, Japan is focusing on developing capabilities to respond to “gray zone” scenarios – activities that fall short of outright armed conflict but are still destabilizing.

US Support and Regional Implications

The United States has consistently expressed support for strengthening security ties between Taiwan and Japan. While not directly participating in the joint drills, the US provides crucial

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