The Strait of Hormuz, one of the world’s most important maritime routes, is once again at the center of global discussion as tensions between Iran, the United States, and Israel raise concerns about potential disruptions in the region. Amid this uncertainty, another crucial waterway in global trade has come back into focus—the Malacca Strait in Southeast Asia, which connects directly to the South China Sea and through which nearly one-third of global trade passes. The narrowest point of this strait is only about 2.8 kilometers wide, located near the Philips Channel close to Singapore.
The Malacca Strait gained renewed attention after the United States reportedly proposed access for military aircraft over Indonesian airspace following a defense agreement, though the matter is still under consideration by Indonesia’s foreign ministry. Experts emphasize that the Malacca Strait is vital because it serves as the shortest and most efficient sea route linking the Indian Ocean with the Pacific Ocean, making it essential for trade between the Middle East, Europe, and East Asia.
According to the U.S. Energy Information Administration, in the first half of 2025, around 23.2 million barrels of oil per day were transported through this route, accounting for nearly 29% of global seaborne oil trade. In the same period, large volumes of liquefied natural gas were also shipped through it. Beyond energy, the strait is used for transporting electronics, consumer goods, industrial products, machinery, and automobiles, with a significant portion of global vehicle trade depending on this route.
While the Strait of Hormuz is primarily crucial for energy transport, the Malacca Strait plays a broader role as a transshipment hub for multiple categories of goods, making its strategic importance even greater. However, it also faces security risks, including piracy and armed robbery. Reports indicate that incidents in the Malacca and Singapore Straits reached their highest level since 2007 in 2025. The region is also vulnerable to natural disasters such as tsunamis and volcanic activity, with the devastating 2004 tsunami having severely impacted its southern areas.
Experts argue that the importance of the Malacca Strait is not only economic but also geopolitical. Rising tensions among major powers such as China, the United States, and India over maritime dominance could significantly affect this critical passage. Increased military or strategic engagement in the region, including expanded U.S. presence, could contribute to long-term instability, although immediate large-scale disruption to commercial shipping is considered unlikely, as global trade depends heavily on keeping this route open.
Analysts suggest that the greater risk lies in a gradual shift from a cooperative maritime security environment to a more competitive one. Even without direct conflict, such changes could lead to higher insurance costs, increased risk perceptions, and broader economic impacts on global trade networks that rely heavily on this corridor.
Indonesia’s position is also seen as complex rather than aligned with any single power, as it continues to balance relations with the United States, China, and other partners including Russia. In 2003, China’s former president Hu Jintao referred to the “Malacca Dilemma,” highlighting the country’s heavy dependence on this narrow sea route for energy imports and trade.
Data from the U.S. Energy Information Administration and the China Power Project indicate that around three-quarters of China’s oil imports and about 60% of its maritime trade value pass through the Malacca Strait and the South China Sea. Japan and South Korea are also highly dependent on this route for energy supplies.
Although alternative routes such as the Sunda and Lombok Straits exist within Indonesian waters, and the Torres Strait near Papua New Guinea is another option, they are limited by depth, distance, and logistical constraints. These alternatives are not capable of fully replacing the Malacca Strait for large-scale commercial shipping.
Experts conclude that instead of seeking full alternatives, major powers are more likely to focus on managing their dependence on this route while increasing their strategic presence in the wider Indo-Pacific region. As a result, the Malacca Strait is expected to remain one of the most critical chokepoints in global trade and geopolitics in the foreseeable future.
Source: BBC and Bloomberg.
New concerns are being raised about the Strait of Malacca
