Droni ucraini vs base industriale di difesa russa: perché è così difficile per gli UAV distruggere la produzione di armi?

Even with the massive allied bombing campaign on Germany in WW2 Germany was still able to produce significant supplies of weapons and materials. It takes a lot to permanently destroy large manufacturing facilities. In Germany (likely similar to some extent in Russia) some was moved literally underground and a lot of production also moved to smaller facilities that were harder to target than large factories. Drones are great for more precision strikes but many don’t have a warhead large enough to do the amount of damage needed.

Drones are small and arms factories are huge. Unlike targeting oil refineries where you can aim for key parts that disable the whole output of the facility (like the cracking units), factories can easily adapt their output to highly localised damage.