What may seem like strategic pragmatism to Trump looks like strategic retrenchment in Tokyo and other Asian capitalsPresident Xi Jinping of China, left, greets President Donald Trump outside the Great Hall of the People in Beijing during their two-day summit, on Thursday, May 14, 2026. CREDIT: (Kenny Holston/The New York Times)By Brahma ChellaneyContributing Writer, The Japan TimesSoon after departing Beijing for the U.S. last Friday, U.S. President Donald Trump called Prime Minister Sanae Takaichi to brief her on his talks with Chinese leader Xi Jinping. The call was intended to reassure Tokyo after Trump’s high-stakes summit in Beijing.But Japan can scarcely draw comfort from the symbolism of that phone call.For Tokyo, the critical issue is whether the U.S. is fundamentally rethinking its approach toward China — and whether that shift could leave Japan dangerously exposed at a time of rising Asian instability fueled at least in part by Chinese expansionism.The Beijing summit underscored a striking reversal in America’s China policy. Trump, casting aside both the adversarial approach of his first term (which the Biden administration largely maintained) and the hawkish rhetoric of the early months of his second term, now appears to be pursuing a policy of pragmatic accommodation.The seismic shift in China policy, from confrontation to an increasingly dovish posture, holds profound implications for Japanese and broader Asian security, as the reversal comes just when Chinese coercive power is expanding.During his first presidency, Trump defined China as the most consequential U.S. adversary, launched tariffs and made the Indo-Pacific central to U.S. strategy. He revived “the Quad,” strengthened pressure on Beijing and increasingly treated economic dependence on China as a national-security vulnerability.In contrast, the latest summit projected a conspicuously conciliatory U.S. stance. The same president who often treats U.S. allies and strategic partners like freeloaders, vassals or adversaries, adopted a strikingly deferential posture toward America’s principal geopolitical rival. He lavished praise on China and Xi, even telling the Chinese leader, “It’s an honor to be your friend.”The U.S. shift is occurring when Japan, under Takaichi’s leadership, has accelerated military normalization, increased defense spending and linked Taiwan’s security to its own. Now Tokyo faces an uncomfortable paradox: Just as Japan is seeking stronger deterrence against China, its principal ally appears to be edging toward tactical accommodation with Beijing.For Japanese strategists, this revives an old nightmare — an “over-the-head” arrangement in which Washington and Beijing stabilize their relationship while Japanese security concerns are treated as secondary.The concern is not that Trump will abandon allies. Rather, it is the prospect of gradual erosion: delayed or scaled-back arms sales to Taiwan, quieter naval operations, greater ambiguity in American commitments and increasing willingness to defer to Chinese “red lines” in exchange for economic or diplomatic concessions.In a transactional framework, such concessions can accumulate incrementally. Over time, they alter the regional balance.Trump’s willingness to roll back sanctions on Chinese refiners purchasing Iranian oil, together with his studied ambiguity on Taiwan and arms sales to Taipei, will reinforce concerns in Tokyo that immediate transactional calculations are increasingly outweighing Indo-Pacific deterrence.His silence on China’s egregious human-rights record further underpins the perception that strategic accommodation is increasingly taking precedence over principle and long-term security.Behind Trump’s conciliatory turn toward China lie the mounting costs of his Iran war fiasco, economic turbulence at home and slumping approval ratings.The war against Iran has exposed serious strains in American military capacity. Precision-guided munitions, missile interceptors and other high-end systems have been consumed at alarming rates, depleting stockpiles. The conflict has also revealed vulnerabilities in U.S. forward bases and maritime operations — lessons Beijing is undoubtedly studying closely.At the same time, China has demonstrated powerful economic leverage. A year ago, in response to Trump’s sky-high tariffs, Beijing effectively pulled a geoeconomic kill switch by halting most exports of rare-earth minerals — critical inputs for high-tech production. Washington was forced to climb down and negotiate a truce.For Trump, confrontation with China now carries mounting economic and political costs. Inflationary pressures stemming from Middle East instability, fears of supply-chain disruption and concerns over U.S. debt have strengthened Washington’s incentives to stabilize ties with Beijing, lest China weaponize its holdings of U.S. Treasuries and America’s dependence on China-centered supply chains.But what may seem like strategic pragmatism in Washington looks like strategic retrenchment in Tokyo and other Asian capitals that rely on the credibility of U.S. deterrence.Japan’s security environment is uniquely vulnerable to any weakening of deterrence in the Taiwan Strait. Taiwan is not a distant geopolitical issue for Japan but central to its national security. If China were to dominate Taiwan, it would gain greater control over the maritime choke points and sea lanes through which much of Japan’s energy imports and trade flow.Moreover, the Iran conflict itself has highlighted the geopolitical power of choke points. Just as disruptions in the Strait of Hormuz have delivered a global energy shock, Beijing may conclude that pressure on Taiwan and surrounding sea lanes could coerce adversaries without requiring a full-scale invasion.For Japanese policymakers, unquestioned reliance on an all-encompassing American security umbrella is starting to look risky. That realization is likely to accelerate two trends already under way.First, Tokyo will intensify efforts to strengthen “minilateral” security networks across the Indo-Pacific, particularly with countries such as India, Australia, the Philippines and Vietnam. These partnerships increasingly serve as insurance against uncertainty in American policy.Second, Japan’s internal debate over constitutional revision and long-range strike capabilities is likely to accelerate further. Trump’s Beijing pivot may strengthen the argument among Japanese strategists that Japan must become a more autonomous military power capable of defending itself even if Washington’s priorities shift.The Trump-Xi summit may have reduced immediate tensions between the world’s two largest powers. But for nations on China’s periphery, the summit reinforced a more troubling reality — that Washington increasingly sees the world’s largest autocratic state less as a challenger to be contained and more as a peer superpower whose cooperation America now urgently needs.For Japan, the deeper fear is no longer merely a rising China, but an America growing less willing to confront it.Brahma Chellaney, a longstanding contributor to The Japan Times, is the author of nine books, including “Water: Asia’s New Battlefield,” which won the Bernard Schwartz Award.