Japan not planning naval operations in Strait of Hormuz despite Trump's pressure

Japan not planning naval operations in Strait of Hormuz despite Trump's pressure

Online Desk

Published: 2026-03-16 16:20:17

Japan has said it is not currently considering deploying maritime security operations in response to rising tensions around the Strait of Hormuz, despite calls from United States President Donald Trump for allies to help protect the crucial oil shipping route.

Defence Minister Shinjiro Koizumi told parliament on Monday that Tokyo had not begun preparations to order maritime security missions in the region. His remarks came after Trump urged several countries, including Japan, to send naval forces to support efforts to safeguard vessels moving through the strategic waterway.

Trump said over the weekend that the US Navy would soon begin escorting oil tankers through the Strait of Hormuz, one of the world’s most important maritime corridors for energy supplies.

Japanese Prime Minister Sanae Takaichi said her government had not received any direct request from Washington regarding naval support. Speaking in parliament, she said the priority was determining what actions Japan could take independently while remaining within the limits of its legal framework.

“The issue is what Japan should do based on its own judgement and what can be done within our laws, rather than responding to requests from the United States,” Takaichi said. She added that relevant ministries had been asked to review the situation and discuss possible responses.

However, the prime minister cautioned that ordering maritime security operations would present serious legal challenges under Japan’s current constitutional framework.

Japan’s Self-Defence Forces operate under strict legal restrictions stemming from the country’s post-war constitution, which renounces war and limits the use of military force. Sending naval units abroad remains politically sensitive, and public opinion in Japan has historically been cautious about overseas military deployments.

Takayuki Kobayashi, policy chief of the ruling Liberal Democratic Party, also indicated that the threshold for dispatching warships would be extremely high.

The debate highlights the economic stakes for Japan if instability spreads across the Strait of Hormuz. The country is the world’s fourth-largest economy and the fifth-largest importer of crude oil. Around 95 percent of Japan’s oil imports originate from the Middle East, and roughly 70 percent of those supplies pass through the Strait of Hormuz.

The situation has grown increasingly tense after Iran effectively shut down the strait in retaliation for the ongoing US-Israeli conflict with Tehran, raising concerns over global energy supplies and maritime security in the region.

Energy analysts warn that any prolonged disruption in the strait could have significant consequences for global oil markets and energy-importing nations such as Japan.