As a junior high student, I was horrified by China’s 1962 invasion of India’s northeast frontier. The People’s Liberation Army ultimately withdrew, but for over 60 years since, I have closely observed Indo-Chinese relations. I strongly believe Japan can find valuable lessons in India’s long-term experience with its powerful neighbor.

Both Japan and India face common challenges from China’s growing assertiveness. While India contends with persistent border tensions in the Himalayas, Japan manages maritime activities near the Senkaku Islands and broader Indo-Pacific dynamics. India’s response to the 2020 Ladakh standoff offers Japan practical insights into balancing firmness on core interests with steady diplomacy, economic resilience, and strategic partnerships to avoid escalation.

The Ladakh incident in April 2020 showed how gradual shifts can alter established positions, as Chinese forces moved into areas previously under Indian control despite status quo agreements. Multiple rounds of talks led to buffer zones and disengagement protocols, alongside infrastructure developments on both sides. Japan observes similar incremental patterns in the East China Sea, where regular presence in contested waters reshapes the operational landscape over time.

Substantial economic interdependence—with India-China trade reaching about $128 billion in 2024–25—does not guarantee strategic restraint. Both India and Japan recognize that economic engagement alone has limits, making strategic clarity and preparation essential. Post-Ladakh, India made targeted investments in border infrastructure and surveillance while maintaining diplomatic channels, a model Japan could adapt through enhanced patrols, surveillance, and bilateral contacts in its own region.

Economic resilience is another cornerstone. India restricted certain Chinese apps and scrutinized foreign investments after the standoff, while promoting local manufacturing. Japan’s “China plus one” strategy and investments in partners like India for semiconductors and green energy similarly reduce exposure to potential coercion. Partnerships further amplify strengths; Japan and India have deepened ties through the Quad and bilateral frameworks, enhancing deterrence without overt confrontation.

Diplomacy remains a steady tool. India engages China through multilateral forums like BRICS while upholding sovereignty, and high-level meetings sustain dialogue despite border issues. Japan employs similar avenues, with coordinated messaging among allies. India’s layered strategy—pairing defense readiness with economic diversification and dialogue—proves effective, and Japan is already advancing along parallel lines with defense upgrades and strategic partnerships.

Ongoing management in Ladakh, through patrol arrangements and infrastructure matching, shows the value of sustained application. Japan’s maritime domain benefits from analogous measures, like base enhancements in Djibouti and trilateral projects with India. Together, these approaches foster a rules-based Indo-Pacific. India’s rise in Asia’s power indices reflects strategic gains, while Japan’s economic leadership complements geographic strengths. Lessons from India encourage proactive, measured steps that contribute to regional stability through diversified strengths and open communication.