Three years after the first foreign customer (Syria) received the Pantsir-S1 anti-aircraft systems, the Russian Air Force is getting some. The Russian Air Force recently received the S1E version, with an improved radar (36 kilometer range) and missile (more reliable). Curiously, the air force is using their first ten Pantsir-S1s to guard S-300 anti-aircraft missile bases located around Moscow. There was no explanation from the Russians as to why they felt a mobile, low level anti-aircraft system was needed to guard a larger, high altitude one. Perhaps additional protection against cruise missiles. The Russians aren't saying. These ten vehicles were...