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In page Great Leap Forward:

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At the Lushan conference of 1959, Peng Dehuai, one of the great marshals of the Chinese civil war against the nationalists, was a strong supporter of the Leap. But the discovery that people from his own home area were starving to death prompted him to write to Mao to ask for the policies to be adapted. Mao was furious, reading the letter out in public and demanding that his colleagues in the leadership line up either behind him or Peng. Almost to a man, they supported Mao, with his security chief Kang Sheng declaring of the letter: "I make bold to suggest that this cannot be handled with lenience."[citation needed]