Russia is installing air-defence systems in Moscow. Guess why.
https://www.telegraph.co.uk/world-news/2023/01/21/ukraine-russia-war-live-kyiv-moscow-germany-tanks-nato/?WT.mc_id=tmgoff_youtube_youtube-community
Russia is preparing to defend Moscow against enemy air attacks, its defence ministry has said.
"In the Moscow region, a training session was held with the personnel of the anti-aircraft missile brigade of the Western Military District on repelling air attacks on important military-industrial and administrative facilities," the ministry said in a statement.
It said a S-300 anti-aircraft missile system was involved in the training as combat was simulated.
Not much more in the article.
Do you know why anti-air systems are being installed around Moscow?
For propaganda-reasons.
In russian media and russian propaganda, Russia's invasion of Ukraine is portrayed as an attack by the West on Russia:
"The evil, war-mongering West is sacrificing Ukraine's military to bleed out the russian military, so they can then invade Russia and break up our country to steal our oil, just like they always planned to do after the collapse of the Soviet Union."
It's security-theater, to amplify state-propaganda that the West will invade Russia any minute now.