February 1961 - China refuses to discuss the Sino-Bhutanese and Sino-Sikkim boundary disputes and further occupies 12,000 square miles in the western sector of the Sino-Indian border.
October 1961 - Chinese starts aggressive border patrolling and establishes new military formations, which start moving into Indian territory.
November 1961 - Fresh Chinese incursions into the Ladakh area.
December 1961 - India under Nehru adopts the Forward Policy to stem the advancing Chinese frontier line.
Under the policy, a few symbolic posts in Ladakh were established to enable India to be in a position to take action to recover any territory within Chinese possession.
June 1962 - China rejects India's demands to withdraw its forces from Indian territory. The agreement on Trade and Intercourse between India and China lapses.
July, 1962 - Skirmishes at Aksai Chin.
August 1962 - China accuses India of advancing even north of the McMahon Line. Chinese logistic and manpower buildup along the frontier.
September, 1962 - Isolated skirmishes along the disputed border.
October 1962 - India forms special Border Command under General Kaul.
October 1962 - First heavy fighting, at Tseng-Jong in NEFA Chinese launch a massive assault across the Namka Chu River in NEFA.
October 20-21, 1962 - Chinese launch simultaneous attacks in Aksai Chin, successful against Galwan Valley and Chip Chap Valley posts.
October 23, 1962 - Chinese overrun all posts down to Tawang in NEFA.
October 24-25, 1962 - Chinese probing attacks at Walong, in eastern NEFA.
Oct 27, 1962 - Nehru rejects China's ceasefire proposal.
November 14, 1962 - On Nehru's birthday, Indians launch an attack on Chinese north of Walong.
November 15, 1962 - The Indian offensive fails.
November 17, 1962 - Chinese attack Indians on Bailey Trail in NEFA; a Chinese attack at Se La, NEFA, is repulsed; Chinese begin a simultaneous attack on Chushul in Aksai Chin.
November 18, 1962 - Chinese successful at Chushul; no Indian force remains in Aksai Chin; Indian forces are forced to withdraw from Se La; Chinese forces attack Bomdi La
November 19, 1962 - Chinese attack Chaku; Zhou Enlai gives ceasefire dictum to Indian official in Peking.
November 20, 1962 - Zhou publicly announces ceasefire; India requesting US military aid, but ceasefire ends need for US intervention.
December 1, 1962 - Both sides' troops withdraw 20 kilometres from new boundary lines.