Why Putin’s China Visit Followed Trump’s Trip So Quickly: A Game‑Theory Analysis

Information Update in the Triangular Game

Game theory states that any bilateral change alters the third party’s expected payoff, prompting a response. The three players are China, the United States, and Russia. Cooperation propensity is denoted by a value between 0 (full antagonism) and 1 (full cooperation). Russia cares most about the variable representing the tightness of US‑China relations; the higher this value, the less strategic support Russia can extract from China.

Signal Update

Before Trump’s visit, Russia held a prior belief about China. Trump’s visit acted as a public signal, prompting Russia to update its belief via Bayes’ rule.

The visit conveyed several signals: broad agreements in agriculture, aviation, and artificial intelligence, and a discussion on the Strait of Hormuz, where Trump expressed a desire for reopening and Xi supported a negotiated, swift reopening.

From Russia’s perspective, this signal is ambiguous. US‑China relations are neither broken nor tightly bound. The ambiguity raises Russia’s expected payoff for a direct visit to Beijing higher than remote observation.

Payoff Matrix

Regardless of the direction of US‑China relations, the expected payoff of an immediate visit exceeds that of a delayed one, a situation known in game theory as a weakly dominant strategy—giving Putin no reason to wait.

Erosion of Strategic Value

Russia’s strategic value to China can be roughly described as:

Alternative energy supply value,

Military strategic deterrence value,

Potential improvement in US‑China relations,

As US‑China relations improve, Russia’s marginal value to China declines. A key data point: EU dependence on Russian gas fell from 45% at the war’s start to an expected 12% by 2025, with legislative moves to exit, leaving China as Russia’s almost sole large buyer. For Putin, this line of dependence is rigid and cannot retreat.

Three‑Fold Logic

First Layer: Facing the Accounting, Avoiding Passivity

US officials before Trump’s visit publicly asked China to play a more active role in reopening the Strait of Hormuz. Analysts suggest Beijing may demand concessions on Taiwan policy in exchange.

If China pressures Iran, the Strait situation eases, global energy tension eases, and Russia’s value as an alternative supplier shrinks, directly lowering its payoff. Putin needs to know what commitments Beijing gave Trump, not just guess from Moscow.

Second Layer: Time Window for Energy Negotiations

From 2022 to early 2026, China saved roughly $18.3 billion by buying Russian oil at an average 7.7% discount. However, Chinese imports from Russia have been declining, while diversification via pipelines to Kazakhstan and Myanmar and purchases from Brazil and the Middle East increase. More buyer options weaken the seller’s bargaining power.

China and Russia are negotiating the revival of the “Siberian Power 2” pipeline, targeting 500 billion m³ annual capacity. Sanctions and tariffs create uncertainty, motivating both sides, but the negotiation leverage depends on how many alternatives China has. Negotiating now, before China fully diversifies, yields better terms for Russia.

Third Layer: Ukraine as an Unplayed Card for Putin

During Trump’s visit, the Ukraine issue was brushed aside by China with a simple “hope the conflict ends soon,” leaving no concrete agreement. This gap can serve Putin: advancing a Russia‑Ukraine cease‑fire could be offered to Beijing as a contribution, exchanged for Chinese cooperation on energy pricing and economic ties.

Externally, the visit appears asymmetrical. Russia’s dependence on China is deeper than the reverse; Putin’s trip is more about seeking support than engaging in equal negotiation.

Larger Picture

Zooming out, several structural changes are forming.

China’s role is changing. Iran’s foreign minister, Trump, Putin, and the soon‑to‑visit Pakistan form the full list of actors in the Strait of Hormuz crisis. Beijing did not actively seek this position, but its massive economy, reliance on Iranian oil, and ability to bring multiple levers make it a natural hub for negotiations.

CSIS analysis notes that China’s recent hosting of the Iranian foreign minister positions it as a potential facilitator for reopening the Strait while maintaining strategic distance from the US. This ambiguous stance preserves operational space rather than indicating weakness.

Russia’s position is declining. Modeling published in Nature Communications shows that, regardless of export strategy, Russia’s natural‑gas exports will be 13%–47% lower by 2040 compared with 2020, with the decline highly dependent on China’s purchasing strategy. Russia moves from a monopoly supplier to Europe toward a competitive bidder to China.

The stability of the triangular relationship rests on ambiguity. Post‑summit joint statements agree the Strait must stay open, China opposes militarization, and expresses interest in buying more US oil to reduce reliance on the Strait. These wordings leave room for all three parties—no pressure on Russia, no full concession to the US, and no binding commitment for China.

In triangular games, the most advantageous position is not the strongest but the most needed. Currently, Beijing occupies that spot, not by deliberate engineering but because both the US and Russia find themselves in dilemmas that require China’s involvement.

Reference sources: Reuters, AFP, Al Jazeera, CSIS, Council on Foreign Relations, Nature Communications, Merics, Euronews, ABC News, CNN, Newsweek (2025–2026)