https://www.theguardian.com/world/2023/jan/19/defensive-missile-systems-erected-on-moscow-rooftops
Missile systems designed to intercept aircraft and incoming missiles appear to have been deployed on top of several defence and administrative buildings in downtown Moscow, signalling that the Kremlin is preparing for a potential, if unlikely, attack being directed on the Russian capital.
Photographs published on social media on Thursday showed a Pantsir missile system had been installed on the roof of an eight-story building used by the Russian defence ministry along the Moskva River.
Another video showed the air defence system being lifted on to the roof of an education building in Moscow’s Taganka district, 1.5 miles south-east of the Kremlin.