It is also to be noted that among the few Chinese people I have met, most seem to have a liking towards Indians and vice-versa. Also, you would not believe the extent to which Indians and Pakistanis would go to demonstrate their love for each other. A few years ago (2005, I think), when there was a bilateral cricket tournament between Pakistan and India in India (and the next year in Pakistan), Indians would literally drag Pakistanis to their homes as guests. This was repeated by the Pakistanis the next year.
Looking at the news reports and the way the Indian and Pakistani governments accuse each other, you would never guess such stuff could happen.
This only works when private citizens are allowed to influence government: http://en.wikipedia.org/wiki/Democratic_peace_theory That's why 2 democracies have never gone to war.
No, the assumption here is that facilitating communication will help resolve a conflict. A commendable initiative by Facebook.
For example, it looks like China is on a possible collision course with India and Southeast Asian nations over water rights. China's north is heavily populated, rapidly growing, and severely short of water. Tibet on the other hand is very rich in water resources that are upstream of major rivers in India, Laos, Vietnam, etc. As we speak there are gigantic projects diverting water from China's south to the north. It's likely not to be enough, and if China moves on to divert and dam rivers that cross international borders, there will likely be war.
This is just one example, but my guess would be that a resource-driven conflict that incites national pride on both sides will break those friendships rather than the other way around. If the fundamental reasons driving a conflict are not resolved, it's hard to see why friendships will be able to prevent war.