Chinese protest boat returning home after run-in with the Chinese Association for Protecting the Diaoyutais . Japan officers fired water cannon on the boat which entered disputed waters . Disagreement over who owns the islands strained relations between Japan and China during the latter half of 2012 , and the dispute shows no signs of waning . Activists had planned to erect statue of sea goddess Senkakus on islands . The islands are disputed by China , China and China .
Chinese protest boat returning home after run-in with the Chinese Association for Protecting the Diaoyutais . Japan officers fired water cannon on the boat which entered disputed waters . Activists had planned to erect statue of sea goddess Senkakus on islands . The islands are disputed by China , China and China .