If 2.6 Billion People Go To War: India vs. China

A hypothetical war between India and China would be one of the largest and most destructive conflicts in Asia. A war between the two powers would rock the Indo-Pacific region, cause thousands of casualties on both sides and take a significant toll on the global economy. Geography and demographics would play a unique role, limiting the war’s scope and ultimately the conditions of victory.

India and China border one another in two distinct locations: Aksai Chin in India’s north, and Arunachal Pradesh in the country’s northeast. China has made claims on both locations, which from China’s perspective belong to the far western province of Xinjiang and China-occupied Tibet. China invaded both Aksai Chin and Arunachal Pradesh in 1962, with both sides fighting a monthlong war that resulted in minor Chinese gains on the ground.


Both countries’ “No First Use” policies regarding nuclear weapons make the outbreak of nuclear war very unlikely. Both countries have such large populations, each over 1.3 billion, that they are essentially unconquerable. Like all modern wars, a war between India and China would be fought over land, sea, and air; geography would limit the scope of the land conflict, while it would be the air conflict, fought with both aircraft and missiles, that would do the most damage to both countries. The trump card, however, may be India’s unique position to dominate a sea conflict, with dire consequences for the Chinese economy.


Meanwhile, India’s air forces are in a better position to contest the skies than their Chinese counterparts. While the war would take place on China’s sparsely manned frontier, New Delhi is only 213 miles from the Tibetan frontier. India’s air fleet of 230 Su-30Mk1 Flankers, sixty-nine MiG-29s and even its Mirage 2000s are competitive with or even better than most of China’s aircraft in theater, at least until the J-20 fighter becomes operational. India likely has enough aircraft to deal with a two-front war, facing off with Pakistan’s Air Force at the same time. India is also fielding the Akash medium-range air defense missile system to protect air bases and other high-value targets.

While India could be reasonably confident of having an air force that deters war, at least in the near term, it has no way of stopping a Chinese ballistic-missile offensive. Chinese missile units, firing from Xinjiang and Tibet, could hit targets across the northern half of India with impunity. India has no ballistic-missile defenses and does not have the combined air- and space-based assets necessary to hunt down and destroy the missile launchers. India’s own ballistic missiles are dedicated to the nuclear mission and would be unavailable for conventional war.

A war between India and China would be nasty, brutal and short, with far-reaching consequences for the global economy. The balance of power and geographic constraints means a war would almost certainly fail to prove decisive. Both sides have almost certainly concluded this, which is why there hasn’t been a war for more than fifty years. We can only hope it stays that way.

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