Japan’s Dilemma in the Persian Gulf

(Published in Australian Institute of International Affairs: Australian Outlook, Jun. 26, 2019; re-published in Opinio Juris, Jul. 5, 2019)

In the wake of the recent attacks on shipping in the Persian Gulf, there has been considerable discussion about Europe’s difficult position amidst the escalating tension between the United States and Iran. There has been far less discussion of Japan’s situation. Yet one of the ships was Japanese-owned, and Prime Minister Shinzo Abe was in Tehran at the time of the attack, specifically trying to dampen those tensions. Nonetheless, Japan distanced itself from the American accusations of Iran’s role in quite surprising and uncharacteristic fashion.

Why was that? Like the EU, Japan appeared to be on the horns of a dilemma, but the nature of its dilemma seemed far less clear. One explanation may lie with the Japanese government’s 2014 so-called “reinterpretation” of the war-renouncing provision of the Constitution. The current situation in the Gulf dovetailed with that “reinterpretation” in manner that created a dilemma with huge risks for the government.

Japan’s Surprising Response to the Crisis

Most readers would be familiar with the increasing tensions between Iran and the United States, from the American withdrawal last year from the Joint Comprehensive Plan of Action (JCPOA), the American tightening of sanctions since then, through to the recent U.S. deployment of forces to the region, followed by the two separate attacks on tankers in the Gulf of Oman. This timeline is a good refresher.

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