India VS China

China claims some 90,000 square kilometers of Indian territory. And most of those claims are tangled up with Tibet. Large swaths of India's northern mountains were once part of Tibet.

To many Indians, China is an expansionist power bent on thwarting India's rise as a serious challenge to Beijing's influence in Asia. They are haunted by memories of India's 1962 war with China, in which China launched a massive invasion along the length of the frontier, routing the Indians before unilaterally halting at what today remains the de facto border, known as the Line of Actual Control (LAC).

Bharat Verma, editor of the Indian Defence Review, predicted in a widely publicized essay this summer that China would attack India sometime before 2012. With social unrest rising within China due to the worldwide economic slump, he says, the leadership in Beijing needs "a small military victory" to unify the nation, and India is "a soft target," due to Singh's fecklessness.
Newsweek