Ukraine War, Western Armour Struggles Against Russian Defences

Ukrainian leader Zelensky is now using drone attacks on Moscow. But they are unable to penetrate the forward Russian defences let alone the major defensive lines. So what have we got here happening on the West, on the Ukrainian battlefield? Well, I'm going to suggest that it is the Ukrainians being encouraged to carry out a laboratory experiment on the use of drones in combat. This is tragic stuff.