The McMahon Line marks boundary between Chinese-held and Indian-held territory in the eastern Himalayan
region. The line was the focus of a brief war in 1962, when Indian and Chinese forces struggled to control a disputed area (shown in red), much of which is a high altitude wasteland.
The McMahon Line is a demarcation line drawn on map referred to in the Simla Convention, a treaty between Britain and Tibet signed in 1914.
Although its legal status is disputed, it is currently the effective boundary between China and India.
This dispute was used a pretext in a war between China and India in 1962.
Images for kids
Map from Imperial Gazetteer of India, Oxford University Press, 1909. It marks the "Outer line" as border in the eastern section on the top right.
Official map from Imperial Gazetteer of India, namely The Indian Empire and surrounding countries", shows the "Outer line" as the boundary between the British India and the Chinese Empire.
McMahon Line Simla Accord Treaty 1914 Map 1
McMahon Line Simla Accord Treaty 1914 Map 2
Simla Accord, treaty signed in 1914, Map 1
Simla Accord, treaty signed in 1914, Map 2