Key Facts
• July 30, 2025: Ministry of Defense released final report on submarine repair scandal.
• Issue involved improper provision of goods by shipbuilding companies for submarine repairs.
• Scandal reportedly persisted for 40 years, raising concerns among Maritime Self-Defense Force veterans.
• Katsutoshi Kono emphasized the need for clear boundaries despite close industry-military ties.
• Defense industry and military collaboration deemed essential for technological advancement and readiness.
• Delays in timely supply of repair materials cited as a contributing factor.
• Increased defense budget now allows for improved supply chain management.
• Kono urged consistent implementation of measures to prevent recurrence of such incidents.
Summary
The Ministry of Defense’s final report on July 30, 2025, revealed a decades-long issue involving improper goods provision by shipbuilding companies for Maritime Self-Defense Force submarine repairs. Former Joint Staff Chief Katsutoshi Kono expressed regret over the scandal, highlighting the need for clear boundaries despite the close ties between the defense industry and the military. While collaboration is vital for technological progress and operational readiness, Kono stressed the importance of avoiding complacency. Delays in material supply and past budget constraints were identified as contributing factors. With an increased defense budget, Kono called for improved supply chain management and consistent implementation of preventive measures to restore public trust.
