In November 2025 a public disagreement between Beijing and Tokyo over Taiwan exposed how the island’s fate now reaches far beyond Taipei, shaping trade, military planning and regional alliances across East Asia and further beyond.
The Taiwan question has recently re-emerged as a tension point between China and Japan. This raises broader questions about East Asian security. Beijing affirms its “One China policy”, treating Taiwan as a breakaway province to be “reunified” by force if necessary and reacts sharply to any foreign involvement. Avoiding rhetoric that might provoke its eastern neighbor until now, the consensus in Tokyo is shifting as many senior Japanese officials say a Chinese assault on Taiwan that threatens Japan’s survival could justify a military response. None of this is new, but the tone is.
China’s Firm Position on Taipei
Beijing’s stance remains absolute: it is Chinese territory, and any formal push or support from foreign actors for its independence is intolerable. Officials frame reunification as inevitable and non-negotiable, part of what state discourse calls the “national rejuvenation” of China. In recent months this posture has been accompanied by more visible coercion: maritime patrols in the South China Sea, large-scale exercises around the island and targeted economic measures against partners perceived to have crossed this line.
Any country that appears to undercut China’s claim through military cooperation with Taipei, public statements of support, or strengthened security ties risks a Chinese response. From Beijing’s point of view, fully controlling the region would extend China’s reach beyond its coast by securing sea lanes and projection space for the People’s Liberation Army. Politically, it would close a chapter Beijing sees as a Cold War remnant after a century of perceived humiliation.
Japan’s Stakes in Taiwan
Tokyo’s formal policy remains rooted in the One China framework as it does not recognise Taiwan as a sovereign state and officially supports a peaceful cross-Strait resolution. Security considerations and proximity to Taiwan have forced Japanese leaders into increasing their attention to the island in recent years. Hard-line conservative Prime Minister Sanae Takaichi’s public remarks this month, that a Chinese assault on Taiwan which threatens Japanese survival could trigger a full military response, marked a break with decades of deliberate ambiguity.
It is likely that pending targets have been moved forward and planning for collective self-defence has become more explicit, while defence cooperation with partners particularly the United States under U.S. President Donald Trump has grown more visible. Taipei sits near Japan’s western islands; Yonaguni, the closest island of the Okinawa prefecture is roughly 100 km from Taiwan’s eastern coast and the sea lanes that run here carry a large share of Japan’s energy imports. The presence of substantial U.S. forces in Japan ties Tokyo’s security to Washington’s responses, making it politically and militarily difficult for Tokyo to ignore developments in the Strait.
Reactions, Responses and Confrontation
Responding with strong diplomatic protests and a suite of retaliatory measures to Prime Minister Takaichi’s parliamentary remarks on November 7, Chinese commerce authorities re-imposed bans on Japanese seafood and warned consumers against Japanese products urging its citizens to avoid travel to Japan. Diplomatically, China demanded a retraction and summoned Japan’s ambassador in Beijing to issue a formal protest. This was widely seen as an unusually public move given the recent history of cautious diplomacy in the area.
Japan has issued strong protests over the consul’s remarks and dispatched a senior envoy to Beijing to calm the situation but the talks produced little immediate de-escalation. Japanese fighters were set on high alert after a surveillance drone was detected between Taiwan and Yonaguni, underlining how geographically close this theatre is to Japanese territory. Such moves are not isolated acts but are part of a larger pattern meant to act as a “show of strength” while stopping short of starting a full-scale war.
Why This Small Island is Significant to Both Countries
For Beijing, the island is a core territorial claim bolstered by narratives about sovereignty and historical rectification. Losing the island, or allowing it to consolidate international backing as a separate political entity, would be depicted by Chinese leaders as an unacceptable erosion of national integrity. Its location is also a matter of strategy: full control over the island would make it harder for outside powers to operate in China’s seas.
For Tokyo, the calculus is concrete and immediate. Taiwan’s proximity means that military operations in the straits could quickly affect Japanese airspace and waters. Japanese industry is also deeply integrated with Taiwanese firms notably in fields such as semiconductors and electronics, so instability would hit the stock markets and raise costs for manufacturers.
Possible Future Scenarios and Regional Impact
The stand-off could begin a prolonged period of low-level confrontation. Both Beijing and Tokyo could double down: China sustaining pressure through patrols and economic sanctions, Japan strengthening its military capabilities and aligning more tightly with the United States and other western partners.
This doesn’t mean that there is no time for pragmatic de-escalation from both sides. Recognising the mutual costs of prolonged hostility, Tokyo could clarify that its statements were contextual and not a call to aggressive action, while Beijing could temper sanctions once its political point has been made. Diplomacy behind closed doors might restore exchanges and trade, though the underlying policy differences between the two countries would remain unresolved. Therefore, such an outcome would buy more time but not resolve the underlying causes of these issues.
A third way would be one where a deeper realignment could take place. Japan might accelerate defence modernisation and legal reforms to make collective defence more actionable. On its part, China could respond by heavily investing and intensifying military presence in its south or seeking closer security ties with partners that counterbalance U.S. influence.
In the worst case, simple miscalculations could lead to direct clashes for example between Chinese forces operating near Taiwan and Japanese ships or aircraft which could rapidly draw in the United States given treaty commitments and strategic interests.
While full-scale war remains unlikely for now, we can never be 100% sure as the simple probability increases more and more with these incidents that have developed recently.
Implications for the Rest of The World
No matter if the situation escalates further or not, the United States will undoubtebly remain a central factor to any such issue. Washington’s alliance with Tokyo and its historically ambiguous but substantial support for Taipei mean that any serious incident will have trans-Pacific repercussions.
Neighbouring states like South Korea, ASEAN members, Australia, India, etc. would be forced into a difficult diplomatic calculation, by balancing economic ties with Beijing against security concerns and relations with Washington and Tokyo. Economically, prolonged instability would disrupt semiconductor production, shipping routes and regional investment, with global consequences.
Most analysts agree that this issue has shifted from a regional diplomatic concern to a great security risk for the larger world. In the near term, careful diplomacy from both sides may limit the damage, but the issues at hand suggest this will most likely be a long term gap in East Asian security. How both sides manage politics and deterrence will determine whether the next phase is a steady containment or a dangerous step toward direct military confrontation.
With information from Reuters.