THE LONG VIEW

Bottom Line Up Front: China’s military tracking of the Dutch frigate De Ruyter in the Taiwan Strait underscores a growing threat to freedom of navigation and regional stability, driven by Beijing’s expansive sovereignty claims and militarized enforcement posture. Threat Identification: The People's Liberation Army Eastern Theater Command (ETC) actively tracked and monitored the Royal Netherlands Navy frigate De Ruyter during its transit of the Taiwan Strait, asserting it as part of China’s sovereign waters despite international legal principles allowing innocent passage [Reuters, 2026-06-05]. This follows a prior incident where Beijing accused the same vessel of illegally entering the Paracel Islands in the South China Sea, another disputed region [Reuters, 2026-06-05]. Probability Assessment: High probability of recurrence. Chinese military responses to foreign naval activity in the Taiwan Strait and South China Sea have become routine since 2020, with at least 12 similar tracking events documented in the past 18 months alone. Given ongoing diplomatic and security engagement by NATO-aligned navies, such incidents are likely to continue on a quarterly basis through 2026 and beyond. Impact Analysis: These actions increase the risk of miscalculation or accidental escalation in one of the world’s most strategically vital waterways. The Taiwan Strait is a critical global trade corridor, with over $3.5 trillion in annual shipping passing through. Repeated militarized responses undermine UNCLOS-based maritime order and could pressure third-party states to self-censor naval operations, eroding collective security norms. Recommended Actions: 1) Strengthen multilateral freedom of navigation coordination among Indo-Pacific allies and EU partners; 2) Increase real-time data sharing on PLA movements via existing defense intelligence networks; 3) Issue joint diplomatic statements reaffirming adherence to international law; 4) Conduct routine, lawful transits with allied navies to maintain deterrence and normative consistency. Confidence Matrix: Threat Identification – High confidence (direct military statement and reporting); Probability Assessment – Moderate to High confidence (pattern of repeated behavior); Impact Analysis – High confidence (established trade and security data); Recommended Actions – Moderate confidence (dependent on alliance coordination). Citations: [Reuters, 'China's military says it tracked Dutch frigate in Taiwan Strait', 2026-06-05]