Ukraine is simply a place where the effectiveness of weapon systems has been revalued. With respect to the Russian Federation, it appeared that the quantity of ammunition available was more crucial than its technological refinement. An example can be anti-tank missiles directed by Javelin, considered to be 1 of the best in the planet that actually works for Russian tanks. However, for many months now, most of Russia's heavy-duty armored vehicles have been destroyed by drones: cheaper, simpler and available in large quantities.