On November 7, 1950, Vallabhbhai Patel wrote his celebrated letter to Jawaharlal Nehru on India’s China policy. ‘The Chinese Government has tried to delude us by professions of peaceful intention’, he stated, referring to Beijing’s decision to move troops into Tibet. A new challenge confronted India as a result of the ‘disappearance of Tibet, as we knew it, and the expansion of China almost up to our gates’. ‘Chinese ambitions … not only cover the Himalayan slopes on our side but also include the important part of Assam.