I don't think the Indians are to be taken that seriously. They're bragging about hangars that can resist 1 ton bombs, but once the H-20 fleet comes online, it'll be as if the Indians had to share a border with the United States during the Cold War.
Previously, my concern with India was the expense imposed onto China for building a counter-India force, but as it turns out, the H-20s are long-ranged enough to be able to cover both Ladakh and Guam at the same time. And the suspected H-20 procurement (50) looks as though it'd have a payload capability comparable to a 3rd of the American strategic bomber fleet.
That means that Chinese gravity bombs can be dropped onto all Indian assets, and what's more, India joining the Quad implies that tactically, the Chinese are liable to "break out" by hitting the weak link in the chain. Since India is economically weak, technologically backwards, and organizationally impoverished, India seems to be the likely target if the Chinese opt to do a breakout.
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The only requirements for China, though, beyond the H-20 fleet, are that:
1- China gets a sufficient J-20 fleet to fight US Central Command assets if necessary. Oman is about 1400 km distant, meaning that F-35s can attempt to intercept (which they're not designed for) H-20s in the region.
2- China gets a sufficient nuclear deterrent to threaten off US intervention or Indian nuclear launches. BMD also comes in handy in this regard. While Lhasa is disposable, Chengdu is not, and being able to deter Indian nuclear escalation is crucial.