There is a bitter symmetry to the current moment in global diplomacy. In the worst years of the Covid pandemic, China’s international standing took a severe battering. Its diplomats were cautious, defensive, largely housebound — the architects of wolf-warrior posturing found the world in no mood to be lectured by Beijing. Washington had a rare window to reassert moral and strategic leadership in the spaces China had vacated.

It did not take it.

Now the tables have turned, with a precision that should alarm anyone who believes American primacy is a natural condition of world order rather than something that must be actively maintained.

The Iran Trap

The United States is now mired in the consequences of not one but two wars it chose to back or prosecute in the Middle East. The assault on Gaza consumed the first phase of American diplomatic capital — estranging partners across the Global South, isolating Washington at the UN, and placing its envoys in the impossible posture of defending the indefensible while claiming to lead a rules-based order. The Iran war has completed the destruction.

The strikes on Iranian nuclear and military infrastructure — presented in Washington as a decisive act of strategic clarity — have in practice produced the opposite. Iran has not collapsed. The Arab street is not grateful. American forces are stretched. And the foreign policy bandwidth that might have been deployed across Southeast Asia, the Indo-Pacific, Africa, and Latin America is now entirely consumed by consequences no one in the administration appears to have fully modelled before the first sortie.

American diplomats are not absent because they lack talent or resources. They are absent because their government has made choices that make showing up, in most of the world, a liability rather than an asset. Every ambassador in Hanoi, Nairobi, or Dhaka now carries the weight of Gaza and Tehran in every meeting. China’s representatives carry none of it.

Beijing has noticed. And it has moved.

China’s Recent Diplomatic Gains

What is striking about this list is not any individual diplomatic event — each has its own bilateral logic — but the shape they form together. China is building a durable architecture of relationships in precisely the geographies where American credibility has collapsed: Southeast Asia, South Asia, sub-Saharan Africa, and the post-Soviet space. The Vietnam HSR deal alone is a significant strategic signal. Vietnam is not a Chinese ally. It has a long history of resistance to Chinese domination, a live territorial dispute in the South China Sea, and a political class that plays great powers against each other with considerable sophistication. That Beijing could secure both a presidential visit and a major infrastructure commitment from Hanoi — while Washington was occupied with Tehran — reflects a hedging calculation that is moving.

The Cambodia 2+2 is different in kind but equally significant. That format — defence and foreign ministers meeting jointly — is how Washington formalises its most serious partnerships. China adopting it with Phnom Penh signals an intent to institutionalise what has been an informal client relationship into something with genuine strategic weight. That it happened without any American countermove is a measure of just how thin the US diplomatic bench has become.

Africa is the slowest-burning story but perhaps the most consequential. Mozambique and Madagascar are not prominent names on the diplomatic circuit, but their geography on the Indian Ocean speaks for itself. China’s engagement there is part of a decade-long project of securing maritime positioning under the cover of development partnerships. The United States has no equivalent project, no equivalent patience, and — after Iran — no equivalent reputation.

What a Real Response Would Require

The parallel to the Covid moment is instructive but not identical. During the pandemic, China’s diplomatic retreat was largely involuntary — a consequence of international anger it could not immediately manage. America’s current paralysis is self-inflicted: a product of choices made in Washington that have placed it on the wrong side of world opinion on the two defining crises of this decade. The mechanism differs; the strategic consequence is the same.

A genuine American response would require, at minimum, an honest accounting of what the Iran and Gaza policies have cost in diplomatic terms — not just in the Global South, but among European and Asian partners exhausted by the contradiction between American rhetoric about rules-based order and American practice in the eastern Mediterranean and Persian Gulf.

It would require a renewed investment in the patient, unglamorous work of relationship-building in Southeast Asia and Africa, where China’s advantage is not primarily military or even economic, but diplomatic: they show up, consistently, at the level of seriousness the relationship demands. It would also require something harder — a willingness to reckon with the fact that the unipolar moment is over, and that maintaining American relevance in a multipolar world requires a different toolkit than the one that worked in 1995.

China is not winning through coercion alone. In most of these relationships, it is winning through presence, investment, and the projection of reliability. The United States, for all its enduring structural advantages, is currently projecting the opposite.

The window that opened during Covid was missed. The window that exists today — created by two wars of choice and a diplomatic corps stretched to breaking — is closing. Whether Washington has the strategic clarity to see it, let alone act on it, remains, at best, an open question.