Here's a way to think about the recent U.S. military operations against Iran: it's not just about Iran. It's about oil. And it's really about China.

For the second time this year, Washington has taken action against a major supplier of China's oil. The recent U.S.-Israeli air campaign, which resulted in the death of Iran's Supreme Leader Ayatollah Ali Khamenei, follows a risky raid in Caracas back in January that captured Venezuelan President Nicolás Maduro. Together, these two countries supply about 17% of China's oil. That's not a coincidence; it's starting to look like a pattern.

The broader play, according to observers, is a Trump administration effort to redraw the geopolitical map. The goal? To weaken Beijing's grip on key economic chokepoints. Oil is the central lever being pulled to limit China's influence, a move that comes after the U.S. and its allies have already taken steps to counter China's dominance in critical mineral supply chains.

"Those believing there's no structure behind Trump's actions were led by their disdain," wrote geopolitical strategist Velina Tchakarova in a recent social media post. "All flashpoints are connected dots in a strategy that aims to concentrate all efforts on China & the Indo-Pacific."

In simple terms, the U.S. military is positioned in a way that could cut off energy supplies to China. Slowing the flow of oil could, in turn, slow China's GDP growth—a significant challenge for President Xi Jinping just before his expected summit with President Trump.

China's Heavy Reliance on Iranian Oil

Let's talk numbers, because they tell a stark story. Over half of China's crude imports come from countries that could be disrupted by conflict in the Strait of Hormuz. But the relationship with Iran is particularly deep. According to data from analytics firm Kpler, China bought more than 80% of Iran's shipped oil last year.

On average, China purchased 1.38 million barrels per day of Iranian oil in the previous year. That represented about 13.4% of the total 10.27 million barrels per day of oil China imported by sea. It's a major dependency.

Fund manager Michael McNair noted on social media that the Iran operations have handed Washington significant leverage. "China built a stranglehold over critical supply chains to deter the US. But the Gulf war may have given the US a reciprocal lever over China's supply chain," he wrote.

Unsurprisingly, Beijing isn't happy. A Chinese foreign ministry spokesperson said the U.S. and Israeli action "tramples on the purposes and principles of the UN Charter and basic norms in international relations."

The Strait of Hormuz: A Chokepoint in Crisis

The immediate practical problem is a waterway: the Strait of Hormuz. Iran's Revolutionary Guard Corps recently warned ships not to pass through it, with a senior adviser quoted as saying Iran would "attack and set ablaze any ship attempting to cross."

China has reportedly been pressuring Iranian officials behind the scenes to allow the passage of oil and LNG cargoes. But the warnings seem to be having an effect. Maritime traffic through the strait has nearly stopped, with no oil shipments reported in a recent 24-hour period. A review of shipping signals confirmed only two commercial transits.

The world's major shipping companies aren't taking chances. A.P. Møller-Mærsk A/S (AMKBY) and Hapag-Lloyd AG (HPGLY) have suspended all vessels from transiting the Strait of Hormuz. They halted operations due to the regional conflict and, critically, the withdrawal of maritime insurance coverage. When the insurers flee, you know it's serious.

This disruption "could have a negative impact on Chinese business investments in the wider Middle East," wrote Meia Nouwens, a senior fellow for Chinese Security and Defense Policy at the International Institute for Strategic Studies.

Economic Headwinds Meet an Oil Shock

All of this is happening at a delicate time for the Chinese economy. China has already cut its annual economic growth target to a range of 4.5%–5%, its slowest expansion goal since 1991. Weak consumer spending, a prolonged property slump, and declining birth rates were already weighing on growth. U.S. tariffs have added pressure to China's export-reliant, $20 trillion economy.

Chinese Premier Li Qiang recently acknowledged the economic impact from the U.S. "tariff shock," noting that stimulus measures had helped cushion the blow. But now, add an oil shock to the mix.

The U.S.-Israeli operations have cut off two of Beijing's key oil suppliers. Sure, China can try to diversify its imports, but losing a major, established supplier like Iran doesn't just create an inconvenience—it sharply raises costs. Analysts say this will tighten margins for China's massive manufacturing base, the very engine its economy depends on.

The Bigger Geopolitical Game

This isn't just about barrels of oil. For China, Iran represented more than an energy supplier; it was a key piece in a geopolitical strategy designed to demonstrate the limits of U.S. power.

"Beijing needed a defiant Tehran to keep Washington pinned down in the Gulf, to sustain a sanctions-proof energy corridor, and above all, to stand as living evidence that American power had hard limits," wrote Zineb Riboua, a research fellow at the Hudson Institute. "Ayatollah Khamenei was the man who made that thesis feel real."

With that piece removed from the board, the thesis feels shakier. Henry Wang, president of the Centre for China & Globalization, told a news network that China's supply line will be seriously impacted by what he called a "manmade crisis." But he also argued the U.S. would feel the pain.

"I think President Trump is doing self-harm," Wang said. "It hurts European countries, it hurts G7 countries, and it hurts the US as well. Not just China—the whole global economy. We're not living in an isolated environment. It's all intertwined."

And that interconnectedness is what makes the next move so critical. President Trump is scheduled to travel to China for a summit with Xi Jinping at the end of the month. The war in Iran, and the pressure it applies to China's economy, adds a new and volatile layer of tension to the already fraught relationship between the world's two largest economies. The conversation over coffee just got a lot more complicated.