WI: Pakistan and China vs. India

Since both Pakistan and China claim parts of India (and vice versa), what if China and Pakistan gang up and declare war on India? Which one would win and why?
 
Either the war lasts a couple of days with China & Pakistan grabbing a relatively small amount of border territory, OR
if they try push further into India (or if India believes that they’re going to push further into India) either outside forces intervene on India’s or India goes nuclear.
I can see this quickly spiraling out of control.
 
What era, also there isn't going to be a China and Pakistan vs India war as the world's largest mountain chain prevents the China-Indian conflict from being anything more then small scale Skirmishs leaving Pakistan to face India alone
 
What era, also there isn't going to be a China and Pakistan vs India war as the world's largest mountain chain prevents the China-Indian conflict from being anything more then small scale Skirmishs leaving Pakistan to face India alone
Any date, as long as:
-People's Republic of China controls most of China
-Pakistan exists (obviously)
-India is independent.

Also, maybe China sends troops through Pakistan?
 

nbcman

Donor
Any date, as long as:
-People's Republic of China controls most of China
-Pakistan exists (obviously)
-India is independent.

Also, maybe China sends troops through Pakistan?
Using what roads and rails? The first rail line (Khunjerab Railway) won't be done until 2030 at the earliest. The Karakoram Highway wasn't completed until 1979 and most of it is a 2 lane road. It is only usable for at most 8 months in a year. Pretty slim reed for the Chinese to try to supply forces in Pakistan.
 
You could bet that the USSR/Russia would be looking on with interest, and depending on the time frame (late 60s? 80s?), maybe with considerable interest.
 
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