Taiwan Security Report — July 25, 2026

Security analysis based on open-source intelligence and web research. Period: July 18 — July 25, 2026.

Executive Summary

During the period of July 18-25, 2026, Taiwan faced persistent military pressure from China, characterized by frequent People's Liberation Army (PLA) air and naval incursions into its surrounding waters and airspace, alongside Chinese live-fire exercises in the Taiwan Strait. Concurrently, Taiwan continued to bolster its defense capabilities through ongoing joint defense exercises and the expansion of its Coast Guard fleet. Diplomatically, the United States reaffirmed its unwavering commitment to Taiwan's security, while Taiwan strongly condemned a joint statement between China and Thailand that challenged its sovereignty. Cybersecurity threats remained elevated, with past reports highlighting a significant increase in Chinese cyberattacks targeting critical infrastructure, a concern underscored by recent US war game simulations. These developments collectively underscore a heightened state of alert and a continued focus on enhancing Taiwan's resilience against external aggression and influence.

Key Security Developments

• Persistent PLA Air and Naval Incursions
  Between July 24 and July 25, Taiwan's Ministry of National Defense (MND) tracked 29 Chinese military planes, six naval vessels, and five ships around Taiwan. Seventeen of these PLA aircraft crossed the Taiwan Strait median line and entered Taiwan's northern, central, and southwestern air defense identification zones (ADIZ). This follows earlier detections on July 21, where four PLA aircraft sorties and five PLAN vessels, along with six official ships, were observed, with all four aircraft crossing the median line into Taiwan's northern, central, and southeastern ADIZ. On July 18, eight PLAN ships and four official ships were detected operating around Taiwan. These continuous "gray zone tactics" aim to incrementally increase military presence and pressure on Taiwan without resorting to direct conflict.

• Chinese Live-Fire Exercises Near Dongshan Island
  On July 23, Chinese military authorities announced two days of live-fire exercises off the coast of Dongshan Island in Fujian province, just kilometers from the Taiwan Strait. These exercises, conducted in maritime areas less than 12 kilometers from the mainland coast and closed to navigation, are part of China's strategy to maintain constant military pressure on Taiwan.

• Taiwan's Ongoing Joint Defense Exercises
  Taiwan continued a five-day joint defense exercise that commenced on July 14, simulating scenarios such as enemy incursions into territorial waters and attacks on major population centers. The drill, which involved the Army, Navy, and Air Force, focused on integrating capabilities and testing decentralized command-and-control systems, with specific deployments of Marine Corps units in the Taipei metropolitan area and armored units in Taoyuan.

• Integration of Civil Exercises into Han Kuang Drills
  Taiwan announced on July 21 that this year's urban resilience exercises would be fully integrated with the annual Han Kuang military drills for the first time, expanding from one to two days. These exercises, scheduled for August 5-14, will include simulated disruptions to mobile internet in 14 regions, underground medical operations, civilian evacuations, and drone-based supply deliveries, aiming to enhance whole-of-society defense resilience.

• Expansion of Taiwan's Coast Guard Fleet
  On July 25, Taiwan expanded its Coast Guard fleet with the addition of a new patrol ship. This development, also reported on July 21, is significant as Chinese maritime "gray-zone activities" have reportedly surged, necessitating a stronger maritime presence for Taiwan.

• US Reaffirms Unchanged Taiwan Policy and "Denial Defense" Strategy
  On July 24, US Undersecretary of Defense for Policy Elbridge Colby stated that the US policy toward Taiwan remains unchanged, and the US National Security Strategy is focused on building a strong "denial defense" along the First Island Chain with allies and partners. This reiterates the US commitment to making available defense articles and services necessary for Taiwan's self-defense.

• Taiwan Rejects China-Thailand Joint Statement on Sovereignty
  On July 23, Taiwan's Ministry of Foreign Affairs (MOFA) strongly condemned a joint statement issued on July 20 by China and Thailand, which falsely claimed Taiwan was an inalienable part of China and stated Thailand's support for China's "one country, two systems" policy. MOFA reiterated that the Republic of China (Taiwan) is a sovereign and independent country and that neither it nor the PRC is subordinate to the other.

• US Lawmakers Simulate AI-Backed Cyberattacks in Taiwan Crisis
  On July 22, members and staffers from the US House Homeland Security Committee and the House China Select Committee participated in a simulated Taiwan crisis that tested responses to AI-backed cyberattacks targeting transportation and logistics networks in the US. This war game scenario mirrored concerns about Chinese state-backed hacking groups like Volt Typhoon, which are believed to be positioning themselves within US critical infrastructure to disrupt it during a future conflict over Taiwan.

• Past Surge in Chinese Cyberattacks on Taiwan's Critical Infrastructure
  Reports from January 2026 highlighted a dramatic escalation in cyberattacks attributed to China in 2025, with incidents targeting Taiwan's energy sector increasing tenfold compared to the previous year. The overall number of China-linked cyber incidents grew by 6%, primarily targeting critical infrastructure sectors such as energy, hospitals, emergency services, and banks.

• Taiwan Drops Cambodia from Visa Facilitation Programs
  On July 18, Taiwan announced it would remove Cambodia from two visa facilitation programs starting August 1. This decision was made after Cambodia was "rebuffed over rhetoric" in the context of Taiwan's New Southbound Policy, while visa waiver programs for Thailand, Brunei, and the Philippines were extended.

Geopolitical Impact and Regional Dynamics

The ongoing military activities and diplomatic tensions surrounding Taiwan continue to significantly impact regional stability, particularly in the Indo-Pacific. China's persistent "gray zone" military tactics, including frequent air and naval incursions and live-fire exercises near Dongshan Island, serve to assert its territorial claims and test Taiwan's defensive responses. This sustained pressure creates a volatile environment, increasing the risk of miscalculation and accidental escalation in the Taiwan Strait, a critical waterway for global trade. The international community, especially the United States, views these actions with concern, as any conflict over Taiwan would have profound global economic and security implications.

The United States' reaffirmation of its "One China" policy, coupled with its commitment to providing Taiwan with the means for self-defense and building a "denial defense" along the First Island Chain, underscores the delicate balance of power in the region. While the US maintains strategic ambiguity regarding direct military intervention, its deepening security cooperation, including extensive training and consultations with Taiwanese counterparts, signals a strong resolve to deter Chinese aggression. This stance, however, is often met with strong condemnation from Beijing, which views US arms sales and military support to Taiwan as interference in its internal affairs. The recent US war game simulating AI-backed cyberattacks in a Taiwan crisis further highlights the multifaceted nature of a potential conflict and the broader strategic landscape involving major powers.

Taiwan's diplomatic efforts to counter China's influence, such as its strong rejection of the China-Thailand joint statement on sovereignty, demonstrate its determination to maintain its independent international standing. China's attempts to discourage other nations from engaging with Taiwan, as noted by US government departments, reflect Beijing's broader strategy to isolate Taiwan diplomatically. The deepening involvement of global powers, as highlighted by the escalating strategic flashpoint in China-Taiwan relations, transforms what was once primarily a regional dispute into a consequential geopolitical tension with implications for global security, trade, and the balance of power in the Indo-Pacific.

Military and Defense Analysis

Taiwan's military posture during this period reflects a proactive approach to enhancing its defensive capabilities in the face of continuous Chinese military pressure. The ongoing joint defense exercise, which began on July 14 and continued into the reporting period, demonstrates Taiwan's commitment to integrating its Army, Navy, and Air Force for improved joint operations and testing decentralized command-and-control systems. The deployment of Marine Corps units to the Taipei metropolitan area and armored vehicles, including U.S.-made M1A2T Abrams tanks, in Taoyuan, indicates a focus on urban defense and preventing inland advances by hostile forces.

Modernization programs are evident in Taiwan's defense strategy. The planned full integration of urban resilience exercises with the annual Han Kuang drills, including simulated mobile internet disruptions and drone-based supply deliveries, signifies a move towards a "whole-of-society defense" concept. This approach aims to enhance civil-military coordination and overall societal resilience against potential attacks. Furthermore, Taiwan's expansion of its Coast Guard fleet on July 25 is a direct response to the surge in Chinese maritime "gray-zone activities," bolstering its maritime and border security capabilities. While specific defense spending trends for this exact period are not available, a July 23 article mentions Taiwan's plans to raise defense expenditures to 5% of GDP by 2030, indicating a long-term commitment to significant defense investment. Earlier arms deals finalized in April 2026 with the US, totaling $6.6 billion and including advanced artillery systems, missile stockpiles, and a joint ammunition production initiative, further illustrate Taiwan's ongoing efforts to acquire advanced defense articles and enhance its indigenous defense production capabilities.

Outlook and Forecast

Short-term trends (1-3 months): In the immediate future, Taiwan can expect continued and possibly intensified "gray zone" military activities from China, particularly in the lead-up to and during its own major military exercises. The upcoming Han Kuang drills (August 5-14) will likely be met with increased PLA air and naval presence around Taiwan, as Beijing seeks to demonstrate its disapproval and project force. Taiwan will continue to focus on enhancing its asymmetric warfare capabilities, integrating civil defense into military planning, and leveraging its indigenous defense industry. Diplomatic tensions are also expected to persist, with China likely to continue its efforts to isolate Taiwan internationally, while the US will maintain its robust, albeit unofficial, support.

Critical flashpoints and risk areas: The Taiwan Strait remains the primary flashpoint, with the constant presence of Chinese military assets and the crossing of the median line posing a significant risk of accidental escalation. Cyberattacks on Taiwan's critical infrastructure, particularly energy, communications, and financial sectors, are a persistent and elevated threat, with the potential to disrupt essential services and sow chaos. The South China Sea, while not directly Taiwan's territory, is a broader regional dynamic where Chinese maritime assertiveness could indirectly impact Taiwan's security environment and supply lines. Any significant high-level visits by foreign dignitaries to Taiwan or increased US military presence in the region could also trigger a strong reaction from Beijing.

Indicators to monitor: Key indicators to monitor include the frequency and scale of PLA air and naval incursions, especially any crossings of the median line or entry into Taiwan's contiguous zone. The nature and location of Chinese military exercises will also be crucial, particularly any live-fire drills that encroach closer to Taiwan's declared territory. On the diplomatic front, observe statements from major powers regarding Taiwan's sovereignty and any new arms sales or defense cooperation agreements between Taiwan and its partners. Domestically, monitor Taiwan's defense spending allocations and the progress of its indigenous defense programs. Finally, track reports of cybersecurity incidents targeting Taiwan's government agencies and critical infrastructure.

Strategic recommendations: Taiwan should continue to prioritize the development of asymmetric defense capabilities to deter a full-scale invasion, focusing on mobile, survivable, and precision strike systems. Strengthening cybersecurity defenses for critical infrastructure is paramount, including international cooperation and information sharing to counter sophisticated state-sponsored attacks. Taiwan should also continue to diversify its diplomatic engagements and seek to expand its international space, countering China's isolation efforts. Furthermore, enhancing civilian resilience and preparedness through comprehensive urban resilience exercises and public education campaigns will be vital for a whole-of-society defense. Finally, maintaining close coordination with the United States and other like-minded partners on intelligence sharing, joint training, and defense acquisitions will be crucial for bolstering Taiwan's overall security posture.

Sources

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