Japan has expressed strong protests to the United States following the arrest of a U.S. Marine in Okinawa on suspicion of murdering a local woman. The incident has sparked outrage in Japan, prompting the Prime Minister to register a formal protest. Authorities in Okinawa reported that the Marine, aged 20, was taken into custody after being implicated in the death of a Japanese woman at a hotel. The U.S. Embassy has pledged cooperation with local officials as Japan continues to demand accountability in this serious matter.