The 1987 Lieyu massacre occurred on 7 March 1987 at Donggang Bay, Lieyu Island, Kinmen, Fujian, Republic of China (ROC). ROC military officially denied the massacre and defined it as an incident of "accidental manslaughter" (誤殺事件), hence named it the March 7 Incident (三七事件) or Donggang Incident (東崗事件). There may have been more than nineteen deaths, including several families of ethnic Chinese Vietnamese.

The Three Principles of the People is a political philosophy developed by Sun Yat-sen as part of a philosophy to improve China made during the Republican Era. The three principles are often translated into and summarized as nationalism, democracy, and the livelihood of the people. This philosophy has been claimed as the cornerstone of the nation's policy as carried by the Kuomintang; the principles also appear in the first line of the national anthem of the Republic of China.