山田吉彦

Yoshihiko Yamada is a Japanese politician and oceanographer serving as a member of the House of Councillors. Before his election in 2025, he had a distinguished academic career as a professor at Tokai University, specializing in maritime policy, ocean resources, and national security. A recognized expert on maritime issues, including piracy and border security, he has served as a consultant for the Tokyo Metropolitan Government on the Senkaku Islands and chaired various municipal maritime planning committees. Politically, he advocates for strengthening Japan's maritime sovereignty, enhancing defense capabilities, and promoting the commercialization of deep-sea resources. He is a proponent of constitutional reform and emphasizes the importance of the Japan-U.S. alliance in maintaining regional stability.