1st time Russian sub has passed between Yonaguni and Iriomote

Prime Minister Kishida Fumio ordered mission in response to Chinese incursions

Kazuki Yano suggests Taiwan sub could have been far superior to Japanese subs

Russian Navy launches 'extraordinary naval drills' near Japan as tensions rise over sanctions

US, UK aircraft carriers, Japanese helicopter carrier patrol waters off Okinawa

PLAN vessel seen as raising military tensions, constricting Taiwan Navy

PLAN frigate prowls 125 km offKeelung coast, 62 km from disputed Diaoyutai islands