Japan tracked several Russian and Chinese warships sailing on separate voyages near Japanese waters over the last week and tracked a Chinese Unmanned Aerial Vehicle (UAV) and a Chinese Maritime Patrol Aircraft (MPA) operating around its southwest region on Monday. Among the ships tracked was a Russian Navy Pacific Fleet detachment on a patriotic tour of the Russian Far East that was returning to its home port of Vladivostok. The Russian ships then sailed west through La Perouse Strait, which separates Hokkaido from Russia’s Sakhalin Island, to enter the Sea of Japan. The final event of the campaign is scheduled to be in Vladivostok on Saturday, according to a Russian Navy Pacific fleet release. The release stated that destroyer JS Amagiri (DD-154) and JMSDF P-3C Orions of Fleet Air Wing 5 shadowed the PLAN ships.