Situated at a height of 15,200 feet above sea level, the pass sits on the top of a craggily formed Himalayan range that separates the Tibetan plateau from the Indian sub-continent.
Wang Yang and Xi Jinping's visits signal the beginning of a major Chinese push to bring about a transformation of Tibet, observes Jayadeva Ranade, the distinguished China expert and retired RA&W officer.
The over 3,800-km-long Brahmaputra, one of the longest rivers in the world passes through China, India and Bangladesh and has several tributaries and sub-tributaries.
A senior discipline inspection official has "lambasted some party officials for allegedly donating money to the 14th Dalai Lama
Xi arrived at the Nyingchi Mainling Airport on Wednesday and was warmly welcomed by local people and officials of various ethnic groups, Xinhua news agency reported.
China has long coveted Arunachal Pradesh, which it calls Southern Tibet. But, as Venkataraghavan Subha Srinivasan explains, in 1947, the present state of Arunachal Pradesh constituted the North East Frontier Tract of Assam. When India adopted its Constitution on 26 January 1950, NEFT became 'a separate politico-administrative entity' although it was constitutionally still a part of Assam. Its administration was brought directly under the President of India with the Governor of Assam acting as his agent. A revealing excerpt from his book The Origin Story of India's States.
Indian officials said Doval's visit will be rescheduled as he is preoccupied with the handling of the Pathankot incident.
China on Friday said that any successor to the present Dalai Lama should be approved by it, ruling out recognition to any heir nominated by him or by his followers.
'Tibetans will participate in future conflicts with India (in all probability, some were already present in Galwan).' 'As nobody in India would like to have a deadly fight with Tibetan soldiers and officers, the issue needs to be closely followed,' observes Claude Arpi.
'The first time that China alleged the Dalai Lama was 'anti-national' and 'unpatriotic' was after he affirmed that Arunachal Pradesh and Tawang are part of India,' points out former RA&W official Jayadeva Ranade.
The elephant in the room will permeate the conversations, predicts Rup Narayan Das.
It is not clear yet what impact the blockade of the river will have on the flow of water from the Brahmaputra into the lower riparian countries like India and Bangladesh as a result.
Why is China's supreme leader promoting Han Chauvinism so aggressively, asks Claude Arpi.
Over a dozen aftershocks jolted Nepal on Wednesday, keeping people on edge a day after a powerful 7.3-magnitude earthquake killed 76 people in the Himalayan nation that had just begun to rebuild itself following the devastation from the temblor less than three weeks ago.
China plans to build a 540-kilometre strategic high-speed rail link between Tibet and Nepal passing through a tunnel under Mount Everest, a move that could raise alarm in India about the Communist giant's growing influence in its neighbourhood.
'The missile mounted near Kailash-Mansarovar is called DF-21. It is a medium-range, 2,200 kilometres ballistic missile. Its advantage is that it can cover all cities of north India, including New Delhi'
'If you behave like a nail, the adversary will behave like a hammer.'
The Dalai Lama is 84 years old now and the issue of his successor has gained prominence in the last couple of years in the wake of his health issues.
China on Tuesday said that the Dalai Lama can improve ties with it only by giving up wish for Tibetan independence and publicly announcing that Tibet is an inalienable part of the country.
All that India must aim for is to match China's military prowess adjusted to equal Beijing's India-specific military capability, argues Vivek Gumaste.
Tawang is very much a part of India, and if the present Dalai Lama decides one day to take rebirth in Tawang, the Indian government will openly welcome him and support him, notes Claude Arpi.
The 7.9 Richter Scale temblor that struck Nepal on Saturday also affected parts of Tibet. The two border ports to Nepal were seriously affected.
The first priority for the new Tibetan administration in Dharamsala should be to look at Tibetan recruitment in the PLA, suggests Claude Arpi.
After the Ladakh fiasco where Xi Jinping did not expect the Indian Army to resist his land-grabbing tactics, he has to save face before his colleagues in the Communist party.' To bring the threat of a mega-dam to the northern Indian border is a clever move, observes Claude Arpi.
'They know that India is no pushover.' 'We have to be extremely vigilant, remain ready and keep strengthening our positions.' 'We have to be militarily strong, whatever be the cost.'
Asked whether the IAF can play a role in smashing terrorist training camps across the Line of Control in Jammu and Kashmir, he did not rule out such a possibility.
'340 PLA soldiers were dead and over 450 injured -- bodies were strewn outside the bunkers, tossed behind the lines, buried in trenches.' A fascinating excerpt from Probal DasGupta's Watershed 1967: India's Forgotten Victory Over China.
'Their air force is no match to ours!'
Experts said the direction is meant to maintain party unity.
Was Wang Yi'S visit intended to remind India of 1962, asks Claude Arpi?
Important for India was Xi's meeting with representatives of PLA officers and soldiers stationed in Tibet. The video of the encounter was interesting to watch, especially the large number of lieutenant generals and major generals, observes Claude Arpi.
'Chinese troops are not geared to fight Indian troops who are battle hardened and acclimatised and are far more hardy.'
'China is concerned about its impact within Tibet.'
The MEA asserted that Arunachal Pradesh was territorially intergal and inalienable to India.
The brigade that conducted the drills was from the PLA's Tibet Military Command and is one of China's two plateau mountain brigades.
China said that it had put off the visit of Indian pilgrims who enter Tibet via the Nathu La pass "for safety reasons" in view of the border issue.
Important for Chinese President Xi Jinping will be Zhao's discussions on the issues of Tibet and the Dalai Lama and his assessment of the likely results of India's coming national elections, notes former senior RA&W officer and China expert Jayadeva Ranade.
Samdong Rimpoche's visit to China materialised against the backdrop of strained India-China relations consequent to the face-off between Indian and Chinese troops at Doklam, says former RAW officer Jayadeva Ranade.
Overall, the People's Liberation Army Air Force (PLAAF) has focused on building ground-based air defense networks and network-centric operations rather than trying to match the Indian Air Force (IAF) in terms of straight fighter numbers along the border. All air assets fall under the Western Theater Command of the PLA, the largest geographic region of China's five military theater commands.
'The need of the hour is to build on the positives and control the negatives,' says Colonel (Dr) Anil A Athale (retd).