In spring 1962, small numbers of lightly armed Indian troops proactively established presence in the disputed border areas between Chinese Tibet and India, despite intense sabre-rattling in Beijing. What was originally intended as a ‘game of chess and a battle of wits’ in late 1961, eventually ended in war in October 1962. This article discusses the long-term and short-term factors that can help explain why the Government of India opted for the ‘Forward Policy’ in late 1961.