This map shows the ceasefire line of the 1962 <a href="https://en.wikipedia.org/wiki/en:Sino-Indian_War" class="extiw" title="w:en:Sino-Indian War">Sino-Indian War</a> and the Colombo proposal for truce via a Chinese withdrawal by 20 km.
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US Army Headquarters, Survey Company</div>
1963-01
<a rel="nofollow" class="external free" href="https://openresearch-repository.anu.edu.au/handle/1885/187646">https://openresearch-repository.anu.edu.au/handle/1885/187646</a>