China Security Report — February 26, 2026

Security analysis based on open-source intelligence and web research. Period: February 19 — February 26, 2026.

China Security Analysis Report: February 19 - February 26, 2026

Executive Summary

During the period of February 19 to February 26, 2026, China's security posture was characterized by a complex interplay of internal military purges, escalating geopolitical tensions, and strategic diplomatic outreach. Significant internal instability within the People's Liberation Army (PLA) continued with high-profile investigations of senior generals, raising concerns about military readiness and leadership cohesion. Externally, US-China relations remained strained, marked by US accusations of secret nuclear testing and reported hesitation over arms sales to Taiwan, while China engaged in cognitive warfare tactics around Taiwan. Concurrently, Beijing pursued a diplomatic offensive, including a high-level meeting with Germany and an expanded visa-free policy, aiming to project an image of openness and stability. Maritime security in the South China Sea saw both potential de-escalation through proposed joint patrols with the Philippines and continued allied deterrence efforts by the US, Australia, and the Philippines.

Key Security Developments

• Military Purges and Leadership Instability
  The Chinese military continued to experience significant internal turmoil, with senior PLA generals Zhang Youxia, Vice-Chairman of the Central Military Commission (CMC), and Liu Zhenli, Director of the CMC Joint Staff Department, under investigation for "serious violations of discipline and law" as of January 24, 2026. Zhang Youxia was specifically accused of "seriously undermining and destroying the system of responsibility of the Chairman of the Central Military Commission". These purges, which have seen dozens of senior officers investigated since early 2023 and five of the seven CMC members under investigation or on trial, raise serious questions about the PLA's readiness and potential leadership gaps.

• US Accusations of Secret Nuclear Tests
  In February 2026, the United States publicly accused China of conducting secret low-yield nuclear tests in June 2020, alleging a violation of the Comprehensive Nuclear Test Ban Treaty. Assistant Secretary for the Bureau of Arms Control and Nonproliferation Christopher Yeaw provided evidence on February 17, which was dismissed by PRC Washington Embassy spokesperson Liu Pengyu on February 18 as "fabricating excuses". The US Department of Defense (DOD) reported that China's nuclear warhead stockpiles are rapidly increasing, projected to exceed 1,000 by 2030, with a focus on developing early warning counterstrike capabilities.

• Taiwan Arms Sales and US Hesitation
  The United States is reportedly deliberating whether to proceed with a $20 billion arms sales package to Taiwan, fearing it could jeopardize US President Donald Trump's planned visit to Beijing in April. CCP General Secretary Xi Jinping reportedly warned Trump against fulfilling these sales during a phone call on February 16. The proposed package includes critical systems for Taiwan's "T-dome" integrated air and missile defense network, such as Integrated Battle Command Systems (IBCS) and Patriot Advanced Capability-3 Missile Segment Enhancement (PAC-3 MSE) systems. Taiwan's Legislative Yuan is reviewing a special defense budget for weapons systems, with letters of offer and acceptance from the US for anti-tank missiles, Javelin anti-armor missiles, and M109A7 self-propelled howitzers set to expire on March 15.

• PRC Signal Spoofing as Cognitive Warfare Around Taiwan
  The PRC is suspected of employing signal spoofing to create false Automatic Identification System (AIS) signals of its vessels, including a China Coast Guard (CCG) ship, within a Taiwanese harbor. This activity, detected near the Tamsui River in New Taipei from at least May 2023 through February 2026, is assessed as a cognitive warfare effort aimed at degrading Taiwan's threat awareness. These spoofed signals appear briefly before "teleporting" to distant locations, indicating they do not represent real vessels.

• South China Sea: Proposed Joint Coast Guard Patrols with Philippines
  In a significant development, Manila and Beijing are reportedly preparing to launch "joint coast guard patrols" in the contested South China Sea. Philippine Senator Erwin Tulfo announced this potential breakthrough on February 26, following discussions with the Chinese Ambassador, indicating a possible thaw in relations after years of maritime standoffs and collisions. A memorandum of agreement is anticipated by late March.

• South China Sea: US-Australia-Philippines Trilateral Maritime Drills
  The United States, Australia, and the Philippines conducted a Multilateral Maritime Cooperative Activity (MCA) on February 15-16, 2026, within the Philippine Exclusive Economic Zone in the South China Sea. This trilateral drill, the first of 2026, aimed to consolidate naval cooperation, uphold a rules-based maritime order, and reinforce allied deterrence against coercion in the disputed waters.

• China's Diplomatic Engagement with Germany
  On February 25, 2026, President Xi Jinping met with German Chancellor Friedrich Merz in Beijing, emphasizing the importance of enhanced strategic communication and mutual trust between the world's second and third largest economies. Xi proposed that China and Germany act as reliable and innovative partners, championing openness, win-win results, and multilateralism, particularly in safeguarding the UN's central role and international rule of law.

• Expanded Visa-Free Policy for Western Nations
  Effective February 17, 2026, China expanded its unilateral visa-free policy to include ordinary passport holders from the United Kingdom and Canada, allowing stays of up to 30 days. This move, highlighted by UK and Canadian Prime Ministers during their January 2026 visits, is positioned as a tool of economic statecraft and soft power, aiming to deepen global connectivity, boost tourism, and counter negative international portrayals of China.

• Cybersecurity Law Revisions and Data Transfer Measures
  China's amended Cybersecurity Law (CSL), approved in October 2025, officially took effect on January 1, 2026. The revisions strengthen oversight of Artificial Intelligence (AI), expand the government's power to enforce against extraterritorial activities jeopardizing China's cybersecurity, and refine penalty frameworks. Concurrently, new Measures for Certification of Cross-Border Personal Information Transfer also became effective on January 1, 2026, finalizing a three-pathway framework for data processors to transfer personal data overseas.

• Allegations of CIA Disinformation Campaigns
  Chinese intelligence and security agencies reported detecting covert campaigns led by the CIA on social media, aimed at discrediting China's Belt and Road Initiative (BRI) in the Middle East and the Global South. In February 2026, the CIA reportedly launched a public propaganda campaign in Mandarin targeting Chinese military officers and government officials, seeking to exploit frustrations from recent purges and corruption scandals to recruit them for intelligence operations against China.

• Russia-China-Iran Naval Drills in Strait of Hormuz
  Around February 17, 2026, Russia, China, and Iran commenced the "Maritime Security Belt 2026" naval drills in the Strait of Hormuz. Chinese naval assets, including the Type 052DL guided-missile destroyer Tangshan (D122), participated, signaling a strategic convergence among these nations and an intent to deploy credible blue-water combatants beyond littoral confines.

Geopolitical Impact and Regional Dynamics

The period from February 19-26, 2026, underscored the persistent complexity and strategic competition defining China's geopolitical landscape. US-China relations remained a central dynamic, characterized by a delicate balance between high-level diplomatic engagements, such as the anticipated Trump-Xi summit, and significant points of friction. The US accusations of secret nuclear testing and the reported hesitation over Taiwan arms sales highlight deep-seated mistrust and strategic rivalry, particularly concerning military modernization and regional influence. China's response to these accusations and its cognitive warfare tactics around Taiwan demonstrate a continued assertive stance in areas it considers core interests.

Regional stability in the Indo-Pacific is being shaped by these dynamics. The South China Sea remains a critical flashpoint, with China's proposed joint coast guard patrols with the Philippines offering a potential, albeit fragile, pathway for de-escalation after years of heightened tensions. However, this development occurs concurrently with reinforced allied deterrence, as evidenced by the US-Australia-Philippines trilateral maritime drills, indicating that major powers are maintaining their presence and commitment to a rules-based order in the region. The ongoing purges within the PLA, while internal, could have regional implications by potentially affecting China's military decision-making and operational coherence, thus influencing perceptions of its regional assertiveness.

China's diplomatic efforts, such as President Xi Jinping's meeting with German Chancellor Merz and the expanded visa-free policy, aim to cultivate an image of an open and reliable global partner, particularly with European nations. This strategy seeks to counter narratives of a closed, security-focused China and deepen economic and diplomatic ties, potentially creating wedges in Western alliances. The joint naval drills with Russia and Iran in the Strait of Hormuz further signal a growing alignment among these powers, challenging perceived Western maritime dominance and indicating a broader strategic convergence against a unipolar international system. This multi-faceted approach reflects China's ambition to reshape the broader strategic landscape and enhance its global influence amidst a fragmented international environment.

Military and Defense Analysis

The Chinese military, the People's Liberation Army (PLA), is currently undergoing a period of significant internal upheaval and continued modernization. The ongoing purges of senior PLA officers, including Vice-Chairman Zhang Youxia and Joint Staff Department Director Liu Zhenli, for "serious violations of discipline and law," underscore a deep-seated struggle for power and control within the military leadership. This internal instability, with five of the seven Central Military Commission members reportedly under investigation or on trial, raises concerns about the coherence of command and control, potentially impacting the PLA's operational effectiveness and readiness. Such widespread purges could disrupt strategic planning and delay the execution of large-scale military exercises, as observed in 2025.

Despite these internal challenges, China's defense modernization programs continue unabated, particularly in its nuclear capabilities. The US Department of Defense reported that China's nuclear warhead stockpiles are projected to exceed 1,000 by 2030, with a strong focus on developing early warning counterstrike capabilities. This rapid expansion, coupled with allegations of secret nuclear testing, indicates a determined effort to enhance its strategic deterrent against the United States and its allies. Furthermore, the participation of advanced Chinese naval assets, such as the Type 052DL guided-missile destroyer Tangshan, in the "Maritime Security Belt 2026" drills with Russia and Iran, demonstrates China's growing blue-water combat capabilities and its commitment to projecting power beyond its immediate periphery.

In terms of force posture and capability developments, China continues to focus on Anti-Access/Area Denial (A2/AD) strategies and grey-zone tactics in the Indo-Pacific. The signal spoofing activities around Taiwan, creating illusory PRC vessels, exemplify these grey-zone tactics aimed at degrading an adversary's threat awareness without resorting to overt military confrontation. While defense spending trends were not explicitly detailed for this specific week, the broader context of rapid military expansion and modernization suggests sustained high levels of investment. The ongoing development of Taiwan's "T-dome" integrated air and missile defense network, potentially with US assistance, highlights the regional arms race and the continuous evolution of defensive and offensive capabilities in the Taiwan Strait.

Outlook and Forecast

Short-term trends (1-3 months): In the immediate future, US-China relations will likely remain a delicate balance of strategic competition and cautious engagement. The upcoming visit of US President Donald Trump to Beijing in April will be a critical diplomatic event, with the US decision on Taiwan arms sales serving as a significant precursor. China will likely continue its diplomatic outreach, particularly with European nations, leveraging initiatives like the expanded visa-free policy to foster economic ties and counter negative perceptions. Internally, the impact of the ongoing PLA purges on military cohesion and operational planning will be closely watched, with potential for further leadership adjustments. In the South China Sea, the proposed joint coast guard patrols with the Philippines could lead to a temporary de-escalation of tensions, but underlying territorial disputes and the presence of external naval forces will ensure continued vigilance.

Critical flashpoints and risk areas: The Taiwan Strait remains the most critical flashpoint. Any perceived escalation in US arms sales to Taiwan or increased PRC military activities (including continued cognitive warfare) could rapidly heighten tensions. The South China Sea is another persistent risk area; while joint patrols offer a glimmer of cooperation, any miscalculation during maritime encounters between Chinese vessels and those of other claimants or allied forces could quickly lead to confrontation. The nuclear arms race and allegations of secret testing between the US and China present a long-term strategic risk, with potential for further accusations and a breakdown in arms control discussions. The internal stability of the PLA, particularly the fallout from the purges, could also become a risk if it leads to unpredictable military behavior or a weakening of central command.

Indicators to monitor: Key indicators to monitor include the outcome of the US decision on the Taiwan arms package and the success or failure of President Trump's visit to Beijing. Progress on the proposed South China Sea Code of Conduct and the implementation of joint coast guard patrols with the Philippines will be crucial for assessing regional maritime stability. Further developments in the PLA purges, including any new investigations or appointments, will provide insights into the military's internal power dynamics. The scope and impact of China's expanded visa-free policy on inbound tourism and diplomatic relations will indicate the effectiveness of its soft power strategy. Finally, monitoring the frequency and nature of PRC signal spoofing and other grey-zone tactics around Taiwan will be important for understanding China's cognitive warfare capabilities.

Strategic recommendations: For China, prioritizing internal military stability and ensuring clear lines of command will be essential to maintain national security and project a unified front. Balancing assertive territorial claims with genuine diplomatic efforts, such as the proposed joint patrols in the South China Sea, could help manage regional tensions and prevent escalation. Continued engagement with a diverse range of international partners, as seen with Germany and the visa-free policy, can help diversify its diplomatic portfolio and mitigate the impact of strained relations with the US. For regional actors and major powers, maintaining strong alliances and collective deterrence remains paramount in the face of China's growing military capabilities and assertive posture. Close monitoring of China's military modernization, particularly its nuclear program and grey-zone tactics, is crucial for informed policy-making and maintaining regional stability.

Sources

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