For months, the Strait of Hormuz has dominated the global energy story. Investors have focused on whether Iran could close the passage, whether the United States could keep it open and how much oil would continue to reach international markets. That analysis is no longer sufficient. The conflict is spreading from Hormuz to the Red Sea. For the tenth consecutive day, the United States and Iran have exchanged military strikes. Washington has targeted Iranian command centres, missile launch sites and air-defence systems. Tehran has responded against American military facilities in Kuwait, Jordan and elsewhere across the Gulf. Three US servicemen have reportedly been killed, commercial vessels have again been attacked, and visible maritime traffic through Hormuz has fallen back towards the levels recorded at the height of the war. At the same time, the Houthis have threatened to impose a maritime blockade on Saudi Arabia through the Red Sea. This changes the nature of the crisis.

Saudi Arabia had partially compensated for the paralysis of the Strait of Hormuz by redirecting crude exports to Yanbu, its strategic terminal on the Red Sea. Shipments from this route reached record levels, helping to limit the impact of the conflict on global oil supply. The Houthis are now threatening precisely that alternative. In other words, the war is no longer endangering only the main Gulf exit. It is also threatening the principal escape route around it. This is why the latest escalation matters far more than another day of air strikes.

Hormuz and Bab el-Mandeb are two of the most important maritime chokepoints in the global economy. The first connects Gulf producers to the Indian Ocean. The second connects the Red Sea to the Arabian Sea and provides access to the Suez Canal. If both become unreliable simultaneously, the disruption would extend far beyond Saudi oil. European trade with Asia would suffer. Shipping times would rise. Insurance costs would increase further. Tankers and container vessels would be forced to travel around the Cape of Good Hope. Energy, fertilisers, manufactured goods and food inputs would all become more expensive. The oil market has begun to understand the risk. Brent has risen from below USD 73 at the end of June to around USD 88. US petrol prices have returned above USD 4 per gallon. Yet markets are still pricing disruption rather than catastrophe. That may be rational, but it leaves little margin for error.

The central problem is that neither side appears capable of stepping back without losing face. The United States insists that the conflict will continue until Iran accepts unrestricted navigation through Hormuz. Iran considers control of the Strait one of its few remaining strategic advantages and refuses to negotiate while under military attack. The Houthis, meanwhile, are extending the confrontation into the Red Sea under the broader Iranian regional umbrella. Diplomacy continues, but military pressure has become part of the negotiation itself. Pakistan and Qatar are attempting to revive the previous truce. Proposals for a limited ceasefire have reportedly been circulated. Iranian officials continue to insist that diplomacy remains possible. Washington also claims that negotiations have not been abandoned. But the sequence is now familiar. Strike. Retaliate. Threaten escalation. Discuss a temporary pause. Then begin again. This is not a peace process. It is a conflict-management process. The distinction is important because markets are beginning to adapt to repeated escalation. Each individual episode produces a smaller reaction than the previous one. Investors assume oil will continue to flow somehow, vessels will find alternative routes, and neither side will risk total war. That assumption may be correct. It is also dangerous.

A maritime system can remain technically operational while becoming economically dysfunctional. Ships may still pass through Hormuz with their transponders switched off. Tankers may accept enormous bonuses to persuade crews to sail. Saudi Arabia may continue using Yanbu under naval protection. But each additional layer of risk carries a cost. Freight rates rise. Insurance premiums rise. Delivery times lengthen. Inventories become less reliable. Energy buyers pay more for security rather than supply. This is how geopolitical inflation becomes structural. For the United States, the domestic consequences are becoming increasingly visible. Petrol prices above USD 4 per gallon are politically toxic before the mid-term elections. The administration is already seeking tens of billions of dollars in additional war spending while providing support to sectors affected by higher costs.

The conflict therefore creates a circular problem. Military escalation raises energy prices. Higher energy prices increase inflation. Higher inflation limits the Federal Reserve’s ability to ease. Higher rates increase borrowing costs for households, companies and the government. Washington then spends more to finance the war and compensate its economic victims. This is not a sustainable policy indefinitely. For emerging markets, the risks are even greater. Many Asian and African economies import most of their energy and have limited fiscal capacity to absorb higher prices. A simultaneous disruption of Hormuz and the Red Sea would affect oil, LNG, fertilisers and food supply chains at a time when currencies are already under pressure, and central banks have little room to cut rates. The weakest countries would experience the shock first through their current accounts. Then through inflation. Then through fiscal stress. And eventually through political instability.

For investors, the lesson is no longer simply that oil prices may remain volatile. The broader conclusion is that the global trading system now contains multiple geopolitical points of failure. For decades, globalisation was built on the assumption that goods would move through international waters at predictable cost. That assumption is eroding. Maritime routes are becoming bargaining tools, military assets and sources of political leverage. The Strait of Hormuz was already dangerous enough. The emergence of a second front in the Red Sea makes the entire energy system considerably more fragile. The market is still asking whether the conflict will close one chokepoint. It may soon have to consider what happens when two become unreliable at the same time.