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China and India: two massive countries with huge populations that share a very long border but are not politically or culturally aligned. It wouldn't be surprising if these two giants had fought each other in several wars, but in fact, apart from one month-long battle in 1962, they never have. Why? Because between them is the highest mountain range in the world, and it is practically impossible to advance large military columns through or over the Himalayas. As technology becomes more sophisticated, of course, ways are emerging of overcoming this obstacle, but the physical barrier remains a deterrent, and so both countries focus their foreign policy on other regions while keeping a wary eye on each other.

There are similar reasons for the Party's resistance to democracy and individual rights. If the population were to be given a free vote, the unity of the Han might begin to crack or, more likely, the countryside and urban areas would come into conflict. That in turn would embolden the people of the buffer zones, further weakening China. It is only a century since the most recent humiliation of the rape of China by foreign powers; for Beijing, unity and economic progress are priorities well ahead of democratic principles.

This is the geopolitics of fear. If China did not control Tibet, it would always be possible that India might attempt to do so. This would give India the commanding heights of the Tibetan Plateau and a base from which to push into the Chinese heartland, as well as control of the Tibetan sources of three of China's great rivers, the Yellow, Yangtze and Mekong, which is why Tibet is known as 'China's Water Tower'. China, a country with approximately the same volume of water usage as the USA, but with a population five times as large, will clearly not allow that.

Trade routes will follow less and less the rivers and seas; men and goods will be flown more and more directly to their goal. Countries like England and France will lose the commercial advantage of abundant coast lines conveniently indented; countries like Russia, China, and Brazil, which were hampered by the excess of their land mass over their coasts, will cancel part of that handicap by taking to the air.

North Korea continues to play the crazed, powerful weakling to good effect. Its foreign policy consists, essentially, of being suspicious of everyone except the Chinese, and even Beijing is not to be fully trusted despite supplying 84.12 per cent of North Korea's imports and buying 84.48 per cent of its exports, according to 2014 figures by the Observatory of Economic Complexity. North Korea puts a lot of effort into playing all outsiders off against each other, including the Chinese, in order to block a united front against it.

All the Chinese want is the oil, the minerals, the precious metals and the markets. This is an equitable government-to-government relationship, but we will see increasing tension between local populations and the Chinese workforces often brought in to assist the big projects. This in turn may draw Beijing more into the local politics, and require it to have some sort of minor military presence in various countries.

China has one-fifth of the world's population but only 7 per cent of its arable land.

There are issues which cause friction, chief among them Tibet, the highest region on earth. As previously discussed, China wanted Tibet, both to prevent India from having it, and - almost as bad in Beijing's view - to prevent an independent Tibet allowing India to base military forces there, thus giving them the commanding heights.

growing problem for the Party is its ability to feed the population. More than 40 per cent of arable land is now either polluted or has thinning topsoil, according to their Ministry of Agriculture. China is caught in a catch-22. It needs to keep industrialising as it modernises and raises standards of living, but that very process threatens food production. If it cannot solve this problem there will be unrest.

Wages in Vietnam make China's look almost munificent. The minimum wage for a textile worker in Vietnam is about $100 per month. That's less than one-fifth of the amount a worker in China would earn for stitching together the same T-shirt.

The Chinese look at society very differently from the West. Western thought is infused with the rights of the individual; Chinese thought prizes the collective above the individual. What the West thinks of as the rights of man, the Chinese leadership thinks of as dangerous theories endangering the majority, and much of the population accepts that, at the least, the extended family comes before the individual.