Tokyo is considering a military response to escalating tensions in the Strait of Hormuz, following a direct appeal from U.S. President Donald Trump for allied naval support. A senior official from Japan’s ruling Liberal Democratic Party (PLD) stated Sunday that while a deployment of Japanese warships remains a possibility, any decision will be approached with “extreme prudence.”
Takayuki Kobayashi, chairman of the PLD’s policy council, indicated that Japan is legally able to authorize a maritime security operation under Article 82 of the Self-Defense Forces Law. However, he stressed the high threshold for such a deployment, given the ongoing regional conflict. “We must grab a decision with caution,” Kobayashi said during a program on Japan’s public broadcaster, NHK. “We need to consider calmly how the situation might develop in order to adopt appropriate measures.”
Trump’s call for assistance came via his social media platform, Truth Social, amid heightened friction with Iran. The U.S. President specifically requested that nations including China, France, Japan, South Korea, and the United Kingdom contribute warships to ensure safe passage for commercial vessels through the vital waterway.
The situation intensified after the new supreme leader of Iran, Mojtaba Khamenei, threatened to close the Strait of Hormuz, a move that would severely disrupt global energy markets. Approximately 20% of the world’s daily oil traffic transits the strait, making any blockage a significant threat to international economic stability.
In response to the Iranian threat, Trump has stated the U.S. Navy is prepared to escort tankers through the strait if necessary, and the White House is exploring the formation of an international coalition to patrol the area. U.S. Treasury Secretary Scott Bessent has also publicly discussed the possibility of a multinational security initiative.
While Japan has not dismissed the possibility of joining such a coalition, officials emphasize the need for careful deliberation. Kobayashi reiterated that the bar for Japanese military involvement in the Strait of Hormuz is “very high,” signaling a cautious approach to a potentially destabilizing situation.
