Can Japan Finally Unlock Defense Technology Cooperation With India?

Why It Matters

Accelerating Japan‑India defense collaboration could balance China’s growing military base and secure a resilient, diversified supply chain for the Indo‑Pacific, while offering Japanese firms a large export market.

Key Takeaways

• Japan overhauls export rules to enable defense technology transfers
• India seeks deep localisation and job creation in defence projects
• Cost gaps hinder Japanese systems in price‑sensitive Indian market
• Only one joint R&D project has moved beyond research phase
• Supply‑chain resilience drives Japan’s push for China‑free partners

Pulse Analysis

Japan’s defense industry is undergoing a strategic pivot. The 2023 Act on Enhancing Defense Production and Technology Bases, coupled with a comprehensive rewrite of arms‑export guidelines, is designed to turn defense manufacturing into an economic engine and to safeguard supply chains from geopolitical shocks. By loosening end‑use restrictions and encouraging co‑production, Tokyo hopes to attract trusted allies, especially as Beijing tightens dual‑use export bans on Japanese firms. Recent successes—such as Mitsubishi Heavy Industries’ frigate sale to Australia and Japan’s contribution to the U.K.-Italy next‑generation fighter—demonstrate a newfound willingness to export complex platforms when political and industrial conditions align.

India, the world’s second‑largest arms importer, is simultaneously reshaping its defence procurement landscape. The Make in India agenda demands extensive localisation, technology absorption, and job creation, pushing the country to diversify beyond Russian hardware toward Western partners like the United States, France and Israel. This creates a natural opening for Japanese firms, which possess advanced maritime, aerospace and sensor capabilities. However, entrenched mismatches—Japan’s caution over intellectual‑property protection and India’s insistence on deep transfer of production rights—have stalled large‑scale deals, leaving only niche collaborations such as the ATLA‑DRDO unmanned‑ground‑vehicle research and the UNICORN sensor mast co‑development.

Bridging these gaps will require more than regulatory tweaks. Japanese companies must achieve cost competitiveness through larger production runs, while Indian policymakers need to balance indigenisation goals with realistic technology‑transfer timelines. Joint investment in shared testbeds, joint‑venture manufacturing hubs, and transparent offset frameworks could align incentives and accelerate project timelines. If these structural hurdles are resolved, a robust Japan‑India defence partnership would not only counterbalance China’s rapid militarisation but also forge a resilient, diversified supply chain that underpins broader Indo‑Pacific security and economic stability.