Russia is facing a shortage of anti-aircraft missiles as Ukraine increases attacks deeper into Russian territory. Specifically, there are reported deficits in interceptors for the S-300 system and potentially for the short-range Pantsir-S1 system, which is effective against drones. This scarcity is forcing Russia to utilize more expensive missiles to intercept cheaper drones, a less efficient use of resources. The situation suggests a growing strain on Russia’s air defense capabilities. Experts believe this trend could significantly impact Russia’s ability to protect key infrastructure and military assets. The increasing frequency and range of Ukrainian strikes are contributing to the depletion of these vital defense systems. This development raises questions about the long-term sustainability of Russia’s air defense posture.