Japan weighs US$500 billion defence spending plan: sources
Japan’s government and ruling coalition are considering nearly doubling defence spending over the next five years as part of Prime Minister Sanae Takaichi’s push to strengthen the country’s military capabilities, according to two people familiar with the matter.
If adopted, defence build-up spending for the five years from April 2027 would be set at 70 trillion to 80 trillion yen (US$457 billion to US$508 billion), up about 1.8 times from the roughly 43 trillion yen allocated under the current five-year plan, which began in financial year 2023.
The figure could still change as the government compiles the budget towards year-end and revises its three security-related documents. Japan’s defence ministry said it had no comment at this point.
One of the people told Reuters the new spending was expected to fund purchases such as large numbers of drones. The same person said a weaker yen had pushed up the cost of defence equipment procurement.
The second person said the final figure could land in the mid-to-late 70 trillion yen range, but questioned whether such a sum would be enough given the security environment in East Asia, adding the final figure was subject to debate between the government and coalition partners.
Under the current build-up programme formulated at the end of 2022, Japan sharply raised planned defence spending from an initial allocation of 27.5 trillion yen, with a focus on long-range missiles intended for counterstrike capabilities, as well as ammunition and spare parts for military equipment.
Japan is exploring structuring its defence around the interception of long-range attacks by deploying drones, reflecting new methods of fighting seen in conflicts in Ukraine and Iran, government officials told Reuters in September.
Japan’s defence ministry has said for some years that it is developing domestically manufactured long-range missiles and is also prioritising budget allocations for drones, AI and space technologies to adapt to new forms of warfare.
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