For decades, military power was mainly measured by the number of tanks, aircraft carriers, fighter aircraft and the industrial capacity of the major powers. Modern wars were based on heavy armies, extremely expensive equipment and colossal military budgets. But in recent years, a new model of war has profoundly changed world military doctrines: the low cost war, dominated by drones, precision missiles and low-cost autonomous technologies. From Ukrainian battlefields to tensions between Iran and the United States in the Middle East, this new form of conflict shows that it is now possible to inflict major strategic damage with much cheaper means than a conventional army. This transformation may be one of the greatest military revolutions since the appearance of combat aviation. 1. The Russian-Ukrainian War: The World Laboratory of War by Drone War between...