Large anti-submarine ship of the Northern Fleet of Russia
A large anti -submarine ship in the Chermorsky Fleet
A Soviet anti-submarine helicopter flies over a submarine
Figure of the Soviet-6O ka-27 anti-submarine helicopter
Large Russian anti-submarine ship "Admiral Panteleev""
Marine anti-submarine patrol aircraft is preparing for takeoff
Catalina anti-submarine Maritime Patrol aircraft on take-off
American deck-based anti-submarine aircraft in blue and black coloring Grumman S-2 "Tracker".
An American anti-submarine helicopter is flying on a mission