Will Japan’s new arms export rules spark a high-end defence boom?

Japan has overhauled its overseas arms transfer regulations, a move analysts say paves the way for the country to export high-end weapons and defence platforms, including sixth-generation fighter jets. On April 21, Prime Minister Sanae Takaichi announced that her cabinet had amended the Three Principles on Transfer of Defence Equipment and Technology and the accompanying implementation guidelines. The amendment abolishes restrictions limiting overseas transfer of Japanese-made military equipment to non-lethal systems under five categories, allowing Tokyo to export all types of platforms, including lethal weapons. Takaichi stated that no single country can protect its peace and security alone, and partner countries need defence equipment cooperation. China rebuked the decision, calling it a departure from Japan's pacifist principles.

Despite its technological prowess, Japan has accounted for a trivial share of global arms exports, while neighbors such as China and South Korea are among the top 10 global weapons exporters, according to the Stockholm International Peace Research Institute. The decision marks a departure from Japan’s decades-long commitment to prohibiting lethal weapons sales abroad under its post-war pacifist constitution. However, the industry still faces significant hurdles, including domestic public opinion and international competition. The move could spark a high-end defence boom if Japan successfully markets advanced platforms like its next-generation fighter jet, but success depends on overcoming regulatory, political, and industrial challenges.