It still has to be said that when the Russian military encounters difficulties, they always have more solutions. It is reported that the AK230/630 close-in weapon systems (CIWS) on those old warships of the Russian Navy are being dismantled and all sent to the front line between Russia and Ukraine to fight ground battles.
These systems are specifically deployed near high-value Russian military targets, setting up firing positions, power supply systems, and radar systems. Fixed air defense areas are established to intercept Ukrainian military drones. They protect high-value Russian military targets such as oil refineries, energy depots, airbases, ammunition depots, and so on.
Anyway, since these old and obsolete warships can no longer play their original roles, the air defense systems on them are removed and directly transported to protect oil refineries. This is indeed a highly cost-effective and reasonable solution.
In every large oil refinery area under Russian control, deploying just 50 anti-aircraft guns or rapid-fire cannons, with the coordination of radars and command centers, can basically block most of the suicidal attacks by Ukrainian long-range explosive-laden drones.
Original article: https://www.toutiao.com/article/1829369631493321/
Disclaimer: The article only represents the views of the author.