Citadel" will get a mobile version Russian experts are developing a mobile version of Citadel's anti-aircraft artillery system. The combat module, the radar and the optical detection systems were placed on a vehicle chassis. The new platform will make it possible to quickly move the compound between objects that need protection from air threats. The mobile version will also expand the capabilities of fire teams to engage aerial targets. The stationary version of the fortress has already confirmed its characteristics in combat conditions. The complex is capable of hitting various types of UAVs and cruise missiles, and guided projectiles with a programmable explosion help reduce ammunition consumption.