Genta Koja, a 42-year-old conservative politician and deputy mayor of Naha, Okinawa’s capital, is poised to become the prefecture’s youngest governor after securing approximately 60 percent of the vote in Sunday’s election, according to exit poll data from NHK. He is expected to unseat the incumbent, Denny Tamaki, who had held the position for two terms and opposed increased American military presence on the island.
Koja’s projected victory represents a significant development for Japan’s hawkish Prime Minister Sanae Takaichi, who has been advancing plans to strengthen Japan’s military posture amid rising tensions with China. Koja, backed by the ruling Liberal Democratic Party and other conservative groups, has expressed support for a plan to relocate a major U.S. Marine air base from southern Okinawa to a less populated area in the north—a project that Tamaki had opposed strongly.
Okinawa, a group of subtropical islands in southern Japan with a population of about 1.5 million, is strategically positioned near China and Taiwan. Though it comprises only 0.6 percent of Japan’s land area, it hosts 70 percent of the country’s American military bases, including roughly 30,000 active-duty U.S. personnel. This concentration has long been a contentious issue, with local residents voicing concerns over noise, pollution, crime, and the broader geopolitical risks posed by the island’s militarization.
Koja acknowledged these regional security challenges during his campaign, emphasizing the increasing severity of the security environment and the necessity of a robust Japanese-U.S. security alliance and enhanced Self-Defense Forces capabilities. “It is an undeniable fact that the security environment surrounding Okinawa has become increasingly severe,” he said in a recent debate, highlighting concerns related to China’s growing assertiveness.
Despite the geopolitical context, economic issues appeared to dominate voters’ priorities. Okinawa struggles with wages below the national average, rising prices, unemployment, and significant child poverty rates. Koja promised policies aimed at raising wages, expanding child care support, and boosting tourism to improve the local economy.
His opponent, Tamaki, who has mixed Japanese and U.S. Marine parentage and enjoyed backing from left-leaning parties, conceded the election, saying he respected the voters’ will and planned to use the experience as motivation despite unfulfilled goals for a third term.
Masaaki Gabe, a professor emeritus at the University of the Ryukyus, noted that while many Okinawans desire economic prosperity, there is growing difficulty in opposing the central government’s military buildup. “The situation has reached a point where the prefecture has almost no authority to resist,” he said, reflecting diminished local power in the face of national security policies.
Koja’s anticipated governorship thus marks a shift in Okinawa’s political landscape, aligning the prefecture more closely with Tokyo’s drive to enhance Japan’s defense posture in a region marked by rising geopolitical tensions.