Japanese and Okinawan leaders are pressing American officials for accountability after a local woman was found dead in a Naha hotel.
NAHA, Japan — The arrest of a U.S. Marine accused of killing and robbing an Okinawa woman has grown into a broader political dispute over the American military presence on the island, prompting protests from Japan’s national government and renewed calls from local leaders for changes in how U.S. forces operate there.
Okinawa Gov. Genta Koja and Naha Mayor Satoru Chinen met Monday with senior U.S. officials and delivered a formal protest after police arrested Lance Cpl. Devin Jacob Ballard, 20. Ballard is suspected of killing Anna Yagi, 39, at a hotel in Naha early Saturday and stealing her belongings. Police have said Ballard denies the allegations, and the case was sent Monday to the Naha Public Prosecutors Office.
The local officials met with Lt. Gen. Benjamin Watson, commander of III Marine Expeditionary Force, and U.S. Consul General Andrew Ou at the Okinawa prefectural government office. Their protest called for stricter discipline among U.S. personnel, measures aimed at preventing similar incidents and a review of the U.S.-Japan status of forces agreement, which establishes rules governing American military personnel stationed in the country.
Watson said the Marine Corps would continue cooperating with the investigation. He also acknowledged the anxiety that serious incidents involving American personnel cause in Okinawa and said U.S. forces remained committed to maintaining the trust of the community. The U.S. Embassy and Marine Corps separately expressed condolences to Yagi’s family and pledged cooperation with Japanese authorities.
Japan’s national government also elevated the case into a diplomatic issue. Prime Minister Sanae Takaichi said the government had strongly protested to the United States and demanded maximum cooperation with Japanese investigators, tighter discipline and measures to prevent another serious incident. She also referred to the case Monday as she opened a major policy address to parliament, underscoring the attention the arrest has drawn in Tokyo.
Foreign Minister Toshimitsu Motegi summoned U.S. Ambassador George Glass after the arrest. Defense Minister Shinjiro Koizumi separately called U.S. Forces Japan commander Lt. Gen. Stephen Jost to the Defense Ministry and conveyed Japan’s protest. Japanese defense officials said they also requested full cooperation with the investigation and measures intended to prevent a recurrence.
The response reflects Okinawa’s unusual place in the U.S.-Japan alliance. About half of the roughly 50,000 American troops stationed in Japan are based on Okinawa, and most U.S. Marines in the country are stationed there. The island’s location near Taiwan and the East China Sea makes it strategically important to both Washington and Tokyo, particularly as they strengthen defenses amid regional tensions involving China.
That strategic role has long collided with local opposition. Okinawan residents have repeatedly complained about military aircraft noise, environmental problems, accidents and crimes involving service members. The 1995 rape of a 12-year-old girl by three U.S. servicemen produced mass demonstrations and intensified demands to reduce the American military footprint. Other serious criminal cases involving U.S. personnel have continued to fuel public anger.
The dispute is closely tied to Marine Corps Air Station Futenma, where Ballard is stationed. The air station sits in a densely populated part of Ginowan. Tokyo and Washington have pursued a plan to replace it with a facility at Henoko on Okinawa’s eastern coast, but construction has faced years of opposition and delays. Many Okinawan opponents argue that moving the installation elsewhere on the island does not address the concentration of U.S. bases there.
The latest case has given local leaders another reason to challenge existing arrangements. Koja’s protest Monday cited previous killings involving U.S. military personnel and questioned whether disciplinary measures adopted after earlier cases had worked. His demand for a review of the status of forces agreement goes beyond the immediate investigation and places the arrest within a larger debate over jurisdiction, accountability and the burdens borne by communities surrounding U.S. installations.
Japanese authorities, meanwhile, are continuing the criminal investigation separately from the political dispute. Ballard remains accused but has not been convicted, and prosecutors had not announced a charging decision as of Monday. U.S. military officials have pledged continued cooperation as Okinawan and national leaders press Washington for a broader response.
Author note: Last updated October 5, 2026.