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In page Taiwan independence movement:

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After the transfer of power from Japan to the ROC, the focus of the movement was as a vehicle for discontent from the native Taiwanese against the rule of "mainlanders" (i.e. mainland Chinese-born people who fled to Taiwan with KMT in the late 1940s).[1] The February 28 Incident in 1947 and the ensuing martial law that lasted until 1987 contributed to the period of White Terror on the island, persecuting not only indigenous leftists, but liberals and democracy advocates as well.[citation needed]