Why do you think he called on young people to join the Red Guard?

After the 18 August rally, the Cultural Revolution Group directed the Red Guards to attack the 'Four Olds' of Chinese society (i.e., old customs, old culture, old habits, and old ideas). For the rest of the year, Red Guards marched across China in a campaign to eradicate the 'Four Olds'.

Explanation:

Explanation:

Red Guards, in Chinese history, groups of militant university and high school students formed into paramilitary units as part of the Cultural Revolution (1966–76). These young people often wore green jackets similar to the uniforms of the Chinese army at the time, with red armbands attached to one.

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof