World Affairs
Japan protests to U.S. after Okinawa Marine arrested in robbery-murder probe
Tokyo's formal protest followed the arrest of a 20-year-old Marine in Naha. Japan demanded full investigative cooperation and stronger discipline; the U.S. ambassador expressed regret and pledged cooperation, according to Japan's Foreign Ministry.
Executive summary
- A formal protest: Japan's Foreign Ministry said Foreign Minister Toshimitsu Motegi summoned U.S. Ambassador George Glass on Oct. 4 and lodged a strong protest after a U.S. Marine was arrested on suspicion of a robbery-murder in Naha the previous day.[1]
- Cooperation demanded and pledged: Motegi urged full U.S. cooperation with the investigation, stronger discipline among U.S. personnel and steps to prevent a recurrence. The ministry said Glass expressed deep regret and pledged full cooperation with Japanese authorities.[1]
- No finding of guilt: Okinawa police suspect a 20-year-old Marine assigned to Futenma of killing a 39-year-old woman in Naha and taking her belongings, Reuters reported. Police said the suspect denied the allegations. The case remains under investigation.[2][3]
Motegi summoned Glass to Japan's Foreign Ministry on Sunday, Oct. 4, and lodged a strong protest, the ministry said. The protest came after a Marine was arrested on suspicion of a robbery-murder in Naha, Okinawa, on Oct. 3. Motegi called the reported incident deeply regrettable and urged Washington to cooperate fully with the investigation, tighten discipline and take steps to prevent a recurrence, according to the ministry's account.[1]
The ministry said Glass expressed deep regret over the loss of life and told Motegi that the U.S. would cooperate fully with Japanese authorities and do everything it could to prevent similar incidents. That account records what Japan said was discussed; it does not describe a separate agreement or establish what measures the U.S. will take.[1]
Reuters reported that Okinawa police suspect the 20-year-old Marine, who is assigned to the III Marine Expeditionary Force and based at Marine Corps Air Station Futenma, of killing a 39-year-old woman in a Naha hotel and taking her wallet and backpack. Police said he denied the allegations. Those are investigative allegations, not a court finding; Japan's Foreign Ministry statement did not identify the suspect or provide details of the police case.[2][1]
The U.S. Embassy in Tokyo and III Marine Expeditionary Force have said they are cooperating and expressed condolences, ABC News reported, citing their statements. The public reporting reviewed for this article describes an arrest and investigation, not a conviction.[3]
The diplomatic response concerns a local criminal investigation, but it comes in a prefecture that carries a large share of the U.S. military footprint in Japan. Japan's 2025 defense white paper says Okinawa held about 70% of the land area of U.S. Forces Japan facilities and areas designated for exclusive use as of Jan. 1, 2025, occupying about 8% of the prefecture's land. That context helps explain the sensitivity of cases involving U.S. personnel; it does not establish any broader claim about service members or the facts of this case.[4]