Japan’s prime minister has warned that the effective closure of the Strait of Hormuz amid the United States-Israeli war on Iran is having a far-reaching impact across the Asia-Pacific, intensifying concerns over energy security and regional stability.
Sanae Takaichi made the remarks during a visit to Australia, where Tokyo and Canberra signed agreements aimed at strengthening cooperation in energy supplies, critical minerals, and defense.
The disruption to shipping through the key waterway, through which roughly one-fifth of global oil and liquefied natural gas supplies typically pass, has significantly affected Asian economies that depend heavily on Middle Eastern energy exports.
“The effective closure of the Strait of Hormuz has been inflicting enormous impact on the Indo-Pacific,” Takaichi said.
The majority of oil passing through the strait is destined for Asia, amplifying the consequences of the ongoing blockade.
Australia, which supplies approximately one-third of Japan’s energy needs and is its largest liquefied natural gas partner, has also expressed concern over the situation.
Australian Prime Minister Anthony Albanese noted growing instability and emphasized the importance of cooperation in securing energy supplies.
Both governments have underscored the urgency of coordinated responses as disruptions continue to affect liquid fuel and petroleum product flows across the region.
During Takaichi’s visit, Japan and Australia issued multiple agreements covering economic security, defense collaboration, and critical mineral supply chains.
Australia announced plans to support critical mineral projects involving Japanese partners, with potential access to resources such as rare earths, nickel, and graphite.
Japan has emphasized the importance of these materials for semiconductors, electric vehicle batteries, and defense systems.
The two nations also highlighted expanding military cooperation, including a recent agreement for Japan to supply Mogami-class stealth warships to Australia.
Officials from both sides described their partnership as increasingly vital in a shifting regional security environment, with a focus on maintaining stability and securing key maritime routes.