Russia: Pitlivy frigate departs Sevastopol for naval drills with China in the Med The Russian M-class frigate 'Pitlivy' departed Sevastopol for the Mediterranean, for the joint Russian-Chinese military exercises dubbed, 'Sea Cooperation - 2015,' Monday. According to the Black Sea Fleet HQ the 'Pitlivy' will join the Sea Cooperation - 2015 drills to replace its sister Krivak-class vessel the 'Ladny'.