After the end of WW II, over 100,000 Formosans were living in Japan and Southeast Asia. The subject of Formosans' national status became and Southeast Asia. The subject of Formosans' national status became an international issue during 1945-1947. On the one side, China's Executive Yuan declared all Formosans living abroad to be Chinese in January 1946 (actually effective as of the 25th of October 1945). On the other side, unfortunately, the Headquarters of the Supreme Commander for the Allied Powers (SCAP), and the British and Dutch Governments declared that they were unable to accept any unilateral act of the Chinese Government. In the view of the British Government, for example, the conferment of Chinese nationality on Formosans en bloc could be properly based and recognized only on the basis of a peace treaty with Chinese and Japan. However, the Formosans, such as those living in internment center or so-called ‘war prison camps’ located in Singapore, Thailand and elsewhere, were treated in general as friendly aliens by the British Government. The author explores, in this paper, how the overseas Formosans imparted new meanings to their sufferings in the process of establishing their new national status, as well as how they were treated as ‘enemy subject’ or friendly aliens by the Allied.