Way back in 1945, Stalin was told of the first nuclear test in the USA. He was sceptical. Why? You may have all the firepower in the world, he pointed out, but it is the quality of ground troops that makes all the difference. Stalin’s insights are still very relevant. The USA loves firing missiles and dropping bombs – more bombs were dropped in North Korea in the early 1950s than in the whole of the second world war. But as soon as ground troops go in, they are clearly inferior. The recent history of failures reveals this all too clearly: Iraq, Afghanistan, Libya … One wonders how long the US war machine can keep on failing.

And – as a footnote – I am afraid I was wrong about Trump on the international scene. He is no different from the Bushes, Clinton and Obama, acting like drunken cowboys, trying to provoke one country after another.