The 5P-42 Filin (eagle owl)[1] is a Russian electro-optic countermeasure system developed by Roselectronics for the Russian Armed Forces. The system is designed to disrupt enemy's combatants' eyesight at night and preventing them from targeting a protected platform. Besides that, it is also capable to suppress night vision devices, laser rangefinders, anti-tank missile and other electro-optical sight systems.[citation needed] It was first unveiled in December 2018,[2] and its naval version is currently being deployed at the Admiral Gorshkov-class frigates.