Take Taiwanese language policy for example. After WWII, to eradicate the lingering influence of Japanese colonialism, the Nationalist government that came to Taiwan banned the speaking of Japanese. However, in an effort to make Taiwan identify with the culture of the "mother country" --China--the government also banned the use of the local Taiwanese dialect.
就以台灣的語言政策來說，光復後為了根除日本殖民文化的影響，國民政府禁止人民說日語；但為了使台灣人民認同母國文化，竟連台語也一起禁了。