How to understand the historical tradition of national unity in China?

A: China is a unified multi-ethnic country.

(1) Historically, the exchanges between various ethnic groups in China have enriched Chinese culture, broadened the territory of the motherland and promoted social development.

(2) China's fine tradition of national unity is manifested not only in peacetime, but also when the motherland suffers from foreign aggression. In order to defend national unity and national dignity, the people of all ethnic groups fought in unity, resisted foreign aggression and waged an indomitable struggle against aggressors and ethnic separatists.

(3) In today's socialist modernization, all ethnic groups have become more United and helped each other, and jointly created a new situation of prosperity and stability of the motherland.

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I wish you progress in your studies and go up a storey still higher! (*^__^*)