Chinese officials say Japan's purchase of islands take relations down "dangerous road"

The video discusses the Diaoyu Islands dispute, highlighting the political climate in Japan that influences its actions. It emphasizes the historical context and China's sovereignty over the islands. The speaker calls for unity and strength among the Chinese people to counter external threats and stresses the impact of the dispute on China-Japan relations.

According to the speaker, what has changed in China compared to the past regarding its national integrity?

What does the speaker imply about the unity of the Chinese people in the face of external threats?