Key Points
Japan's LDP proposes defense spending rise to 3-3.5% of GDP.
Proposal avoids nuclear submarine debate and non-nuclear principles revision.
Government will finalize strategy by December 2026.
Current defense target stands at 2% of GDP.
Japan’s ruling Liberal Democratic Party approved a defense policy proposal on June 9 that calls for increased military spending to 3 to 3.5 percent of gross domestic product. The party did not set a specific budget target but cited NATO members, South Korea, and Australia as examples. The government plans to finalize new security documents by December 2026 based on this proposal and expert recommendations.
What the LDP Proposed
The Liberal Democratic Party’s General Affairs Committee approved the proposal on June 9 at party headquarters. The proposal calls for defense power transformation within five years and emphasizes Japan’s national will to defend itself. The party avoided setting a specific budget number but highlighted that NATO members target 3.5 percent of GDP, South Korea aims for similar levels, and Australia pursues 3 percent. The Trump administration has asked allies to reach 3.5 percent.
What Was Left Out
The proposal did not address revising Japan’s three non-nuclear principles or acquiring nuclear submarines. Party chair Arimura Haruko stated that Japan must show resolve to defend itself. The party instead emphasized strengthening U.S. nuclear deterrence and exploring next-generation submarine propulsion without naming atomic power. The Japan Innovation Party holds different views on these issues, so the ruling coalition did not include them in the joint proposal.
Military Priorities Beyond Submarines
The proposal demands faster development of stand-off defense capabilities that allow attacks from beyond enemy range. It calls for stronger airlift capacity, more joint U.S.-Japan training, and expanded radar placement in the Pacific. The party cited Russia’s four-year invasion of Ukraine as a lesson, demanding year-long combat sustainability. It also proposed nationalizing defense factories while contracting operations to private firms to boost wartime production capacity.
Next Steps for Government
Prime Minister Takaki Sakie will receive the proposal later this month. The government will gather expert recommendations in autumn and finalize three new security documents by December 2026. Current security documents target 2 percent of GDP for defense spending. The new framework will guide Japan’s military strategy and budget planning through the next decade.
Final Thoughts
Japan’s defense spending proposal signals a shift toward higher military investment amid regional tensions. The government will decide on specific budget levels by year-end, with current plans suggesting defense spending could rise significantly from the current 2 percent GDP baseline.
FAQs
The party cited growing regional security threats and pressure from the Trump administration for allies to increase military budgets to 3.5 percent of GDP.
No. The proposal avoided nuclear submarines and non-nuclear principles, only exploring next-generation submarine propulsion technology.
The government plans to approve new security documents by December 2026 after gathering expert recommendations in autumn.
Disclaimer:
The content shared by Meyka AI PTY LTD is solely for research and informational purposes. Meyka is not a financial advisory service, and the information provided should not be considered investment or trading advice.
About Author

Huzaifa Zahoor
Co FounderHuzaifa Zahoor is the engineer who built Meyka. He has spent years writing Python, training AI models, and building data pipelines specifically for financial markets. His technical articles have reached over 30,000 readers on Medium, so he knows how to make complex things easy to follow. If this article touches on how the tools work, he is the person who actually built them.
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