20% of World Oil at Risk: Hormuz War Sparks Supply Chain Chaos

A fresh military escalation between the United States and Iran over the Strait of Hormuz is reshaping the global strategic chessboard, and analysts warn the biggest winners could be Russia and China. The crisis, which saw US airstrikes targeting southern Iran to degrade military capabilities used against commercial shipping, underscores the extreme vulnerability of the world's most critical oil artery, which carries about a fifth of global petroleum supply. Southeast Asia, heavily dependent on Hormuz transit for energy, finds itself in a particularly precarious position. Lester Joseph Buitizon, a Manila-based threat intelligence analyst with Aldebaran Threat Consultants, told RFE/RL that ASEAN nations are already shifting energy reliance toward Russia—not in security terms but in energy partnerships—a realignment accelerated by the standoff. This pivot is not merely transactional; it signals a broader erosion of US influence in a region where Washington has traditionally focused on the South China Sea and Taiwan. With American military assets pinned down in the Middle East, China perceives a golden window to press its advantage in the western Pacific. The PLA Navy could operate with less scrutiny, and Beijing's Belt and Road alternative energy corridors gain attractiveness as shipping companies grow reluctant to send tankers through a warzone despite a significant US naval presence. Insurance premiums for Gulf transit have already spiked, and prolonged instability could permanently alter global energy trade flows. Russia, meanwhile, stands to benefit from both higher oil prices and new long-term supply contracts with Asian buyers eager to diversify away from the Hormuz risk. Moscow’s pipeline gas and Arctic LNG projects become safer bets. The cumulative effect may not be a short-term price shock—it could catalyze a lasting geoeconomic realignment, binding Southeast Asia closer to the Eurasian landmass. On the military front, US overstretch is palpable. The demands of a sustained air campaign against Iran, patrolling of the strait, and reassurance of regional allies like Saudi Arabia and the UAE draw resources that might otherwise be deployed to support allies in the Indo-Pacific. The US Navy’s forward presence in the South China Sea may dwindle. Space-based assets, crucial for surveillance and missile warning, could see their tasking reprioritized, potentially allowing Russia and China to test counterspace weapons. In the long term, the ability of the United States to deter multiple near-peer adversaries simultaneously is being questioned. This conflict, even if it remains limited, demonstrates that distant flashpoints can reverberate strategically. Yet the immediate challenge is restoring confidence. Even with American destroyers on patrol, commercial operators refuse to risk their vessels. The US military can degrade Iran’s ability to attack shipping, but it cannot erase insurers' caution. Iran’s claim of control over the strait, backed by its asymmetric naval capabilities, means the situation will fester. For Southeast Asian governments, this is a clarion call. Diversification of energy sources, already underway, will now accelerate, with Russian and Chinese options topping the list. The crisis also complicates the diplomatic balancing act that ASEAN prefers. As US-Iran tensions escalate, the bloc must weigh its security partnership with Washington against its growing energy dependence on Moscow and Beijing. It is a pattern that could be replicated worldwide: a US-led military engagement in one theater inadvertently strengthens its main rivals in another.