Moscow has been surrounded by air defenses for a century, but they were never designed to stop the drones Ukraine is using now

• In recent months, Moscow has seen high-profile drone attacks thought to be launched by Ukraine.
• Russian officials have scrambled to deploy additional air defenses around the capital city.
• Moscow has had air defenses for a century, but they haven't been designed for what Ukraine is doing.

The last few weeks have seen frantic efforts strengthen Moscow's air defenses. The UK's Ministry of Defense noted in a Tweet on September 12th that pictures on social media showed new anti-aircraft installations on towers and ramps around Moscow to protect against drone attacks.