In what program was the Red Guard created and what was their mission?

Red Guards, Chinese (Pinyin) Hongweibing or (Wade-Giles romanization) Hung-Wei-Ping, 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 of the sleeves. They were formed under the auspices of the Chinese Communist Party (CCP) in 1966 to help party chairman Mao Zedong combat “revisionist” authorities—i.e., those party leaders Mao considered as being insufficiently revolutionary. Mao was thus making a bid to regain control of the CCP from his colleagues, but the Red Guards who responded in August 1966 to his summons fancied themselves as new revolutionary rebels pledged to eliminating all remnants of the old culture in China, as well as purging all supposedly bourgeois elements within the government. Several million Red Guards journeyed to Beijing to meet with Mao in eight massive demonstrations late in 1966, and the total number of Red Guards throughout the country may have reached 11 million at some point.

While engaging in marches, meetings, and frenzied propagandizing, Red Guard units attacked and persecuted local party leaders as well as schoolteachers and school officials, other intellectuals, and persons of traditional views. Several hundred thousand people died in the course of these persecutions. By early 1967 Red Guard units were overthrowing existing party authorities in towns, cities, and entire provinces. These units soon began fighting among themselves, however, as various factions vied for power amidst each one’s claims that it was the true representative of Maoist thought. The Red Guards’ increasing factionalism and their total disruption of industrial production and Chinese urban life caused the government in 1967–68 to urge the Red Guards to retire into the countryside. The Chinese military was called in to restore order throughout the country, and from this point, the Red Guard movement gradually subsided.

b - those executed came from every social and economic class

b. they tried to evict the squatters from the area.

so sorry if wrong