New Taiwan-Japan Ferry Service Launches Amid Regional Tensions

On 28 May 2026 a weekly overnight ferry began operating between Keelung, Taiwan, and Ishigaki, Japan. The Yaima Maru, owned by Shosen Yaima, is also listed by Japan as an evacuation vessel for southern islands in a regional crisis.

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China has heightened military pressure on Taiwan, including war games near Japanese waters. Japan, which hosts a major U.S. base in Okinawa and has reinforced defenses on Yonaguni, views the ferry as both commercial link and strategic asset. Historical ties date to Japan’s colonial rule of Taiwan (1895-1945). In November, Prime Minister Sanae Takaichi warned that a Chinese attack on Taiwan could prompt a Japanese military response, a stance that angered Beijing.

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Mayor Yoshitaka Nakayama of Ishigaki promoted the route as a bridge for tourism and cultural exchange. Shosen Yaima president Tatsuya Ohama oversees the service, which departs Keelung each evening and arrives in Ishigaki the next morning, operating once weekly. The ship’s passenger capacity has not been disclosed, but its evacuation designation implies compliance with emergency standards.

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The ferry is expected to increase tourism, logistics and cultural ties while providing Japan with a civilian vessel that can be mobilized for evacuation, enhancing regional resilience. Observers note the route signals Japan’s willingness to support Taiwan amid rising cross-strait tensions.

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Japan’s defence ministry cited reinforcement of island defenses, including Yonaguni, as part of its security posture. Taiwan’s government reiterated rejection of Beijing’s sovereignty claims and welcomed the link. The United States, with a major base in Okinawa, has not commented specifically on the ferry. China condemned Japan’s support for Taiwan, describing the service as a provocative strategic encroachment.

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Public sources do not disclose the Yaima Maru’s passenger capacity, crew details or exact evacuation activation procedures, leaving uncertainty about how quickly the vessel could be repurposed in a crisis.

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• “This regular route is not merely transportation infrastructure,” — Yoshitaka Nakayama, Mayor of Ishigaki

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• “It serves as a new bridge that supports tourism, logistics, economic activity, cultural exchange, and education.” — Yoshitaka Nakayama, Mayor of Ishigaki

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• “This is fundamentally a matter between countries. As a private ferry operator, our first step is to get the service up and running,” — Tatsuya Ohama, President of Shosen Yaima

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The weekly Keelung-Ishigaki service will continue through 2026, with the Yaima Maru remaining on Japan’s evacuation list. Both Japanese and Taiwanese authorities will monitor the route for security implications, and any escalation in cross-strait tensions could trigger activation of the vessel’s emergency role.

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