How to understand the growing tensions between China and the US? How to characterise this new era which started in 2016 with the election of Trump? Is it really a New Cold War, as it is frequently described? How long will it last? How will it end? No, it is not a repeat of the Cold War 1.0; it is different. It will last a long time. It is already nearly five years old. The Cold War lasted 42 years. The cooperative era in US-China relations lasted 44 years. So it would be surprising if this new acrimonious era did not last at least two decades, perhaps much longer. How will it end: very differently to the way the Cold War ended.