McMahon Line

The western portion of the McMahon line drawn on Map 1, that was shared by the British and the Tibetan delegates at the Simla Conference, 1914 The eastern portion of the McMahon line drawn on Map 2, that was shared by the British and the Tibetan delegates at the Simla Conference, 1914 Henry McMahon The McMahon Line forms the basis of the Line of Actual Control and the northern boundary of Arunachal Pradesh (shown in red) in the eastern Himalayas administered by India but claimed by China. The area was the eastern sector of the 1962 Sino-Indian War.

The McMahon Line is the boundary between Tibet and British India as agreed in the maps and notes exchanged by the respective plenipotentiaries on 24–25 March 1914 at Delhi, as part of the 1914 Simla Convention. The line delimited the respective spheres of influence of the two countries in the eastern Himalayan region along northeast India and northern Burma (Myanmar), which were earlier undefined. The Republic of China was not a party to the McMahon Line agreement, but the line was part of the overall boundary of Tibet defined in the Simla Convention, initialled by all three parties and later repudiated by the government of China. The Indian part of the Line currently serves as the de facto boundary between China and India, although its legal status is disputed by the People's Republic of China. The Burmese part of the Line was renegotiated by the People's Republic of China and Myanmar.