The attack from the south came as a complete surprise, not least because the enemy troops broke into Indian territory, not from China, but from Burma.
Air support came from Dongkar and Orang in Tibet and Sinkaling, Myityina and Putao in Burma, laying down a devastating gauntlet of fire on the unprotected Indian positions. The main infantry advance came up from Namya Ra, twenty-five kilometres south of the border.
For almost twenty years, since minor skirmishes in 1987, Chinese and Indian troops had successfully and peacefully protected their borders. At the most tense times, almost half a million troops had faced each other. India deployed eleven divisions and the Chinese PLA deployed fifteen. The mountainous terrain, high-altitude climate and logistical supply difficulties deterred either side from starting a protracted conflict there. India had reluctantly allowed China to continue its occupation of the Aksai Chin area, occupied since 1959, and nestling on the border with Kashmir. China claimed, but had left alone, Arunachal Pradesh, to the east of Bhutan which borders Tibet.
In 1996, both governments agreed to reduce the size of their armies on the border, allowing India to deploy more men against Pakistan in Kashmir. But as tensions ebbed and flowed, troop levels climbed back up again. In the past week, Indian satellites had picked up images of thousands of Chinese troops pouring in, threatening the northern border positions. India reinforced its own positions with the Kameng, Subansiri, Siang and Lohit frontier positions.
Neither side seemed to want conflict. This front was cold, inhospitable and bereft of glory. Even though it was May, conditions in the mountains were appalling and no modern army would want to fight there.
The Chinese build-up, carried out in broad daylight, was a massive decoy to the operation planned to the south. The deployment in Burma had been carried out at night to avoid satellite surveillance. India’s concentration was primarily on Kashmir. An eye was being kept on the China front. The Burmese border was virtually being ignored.
Troops from the Indian 2nd Mountain Division were unprepared. They tactically withdrew and consolidated enough to stop the Chinese advance five kilometres from Ledo. Once there, both sides secured their positions, but the Chinese army was dug in on Indian territory.