Yoichi Funabashi and Harry Dempse via Caixin |Yoichi Funabashi and Harry Dempse via Caixin | Sino-Japanese relations have been stuck in a political quagmire for over six years. Tensions over the Senkaku/Diaoyu Islands have resurfaced time and time again since September 2010, when a Chinese fishing boat rammed two Japanese coast guard ships and its captain was arrested by the Japanese.