Insight: Japan's decision to lift restrictions on foreign arms sales this week - the most sweeping overhaul of its rules since World War II - opens the door to exports of warships, missiles, and fighter jets. Prime Minister Sanae Takaichi framed the decision in terms of collective security, pointing to a deteriorating regional security environment; the strain that wars in Ukraine and the Middle East have placed on US weapons production; and growing demand from allies in Europe and Asia to diversify supply as Washington's security commitments have come under question. Exports will initially be limited to 17 countries with which Japan has signed defense equipment transfer agreements, and a ban on sales to countries at war remains in place - with exceptions permitted in special circumstances.
Impact: The rule change opens new markets, but converting that opportunity into revenue is not straightforward. Japan's leading defense contractors (Mitsubishi Heavy Industries, IHI, and Kawasaki Heavy Industries) are sophisticated manufacturers, but they currently produce small volumes for a single domestic customer, and defense is only one of their many businesses. After two decades of slow growth, the sector is not geared for exports: production capacity is already strained by recent increases in Japan’s own military spending; supply chains need to be rebuilt; and extra workers recruited. Nor is winning customers simple: defense procurement relationships are built on track records, interoperability, and long-term service commitments, none of which can be established quickly. The government is aware of this and has committed to playing an active role, for example, by making future domestic contracts more profitable. So, while the policy shift is real and consequential, the industrial transformation it requires will take time and investment.
