Defense of Japan 2025 – Industrial Policy, Procurement, and Technology Integration

This report provides a detailed examination of the Defense of Japan 2025 white paper, with particular attention to the country’s evolving defense industrial policy, procurement strategies, and the integration of emerging technologies into national defense planning. Drawing exclusively from the official publication of the Japanese Ministry of Defense, the analysis explores the full scope of institutional reforms, strategic investments, capability development programs, and legislative measures introduced or expanded in the 2025 document. The report considers how Japan is responding to a deteriorating regional security environment through a coordinated buildup of its domestic defense production base, deeper international defense cooperation, and the deployment of advanced technological solutions in areas such as cyber, space, and autonomous systems. Japan’s 2025 defense white paper presents a comprehensive initiative to reinforce the country’s defense capabilities in response to a worsening security environment. As part of this strategic adjustment, the Government of Japan has committed to a significant increase in defense expenditures. Specifically, it intends to raise annual defense spending—including related complementary initiatives—to a level equivalent to 2% of FY2022 GDP by FY2027, amounting to approximately ¥11 trillion per year (around USD 70 billion at current exchange rates). In operational terms, the Defense Buildup Program (DBP) establishes a total expenditure target of approximately ¥43 trillion (roughly USD 275 billion) for the five-year period from FY2023 to FY2027.