The three major battles are on page 15 1 in the history books. According to relevant public information, the "Schematic Diagram of Three Major Campaigns" on page 15 1 in the special observation textbook briefly describes the historical significance of the PLA's strategic decisive battle. The three major battles refer to the strategic decisive battle between the China People's Liberation Army and the Kuomintang army from1September 1948 12 to1October 3 1 day, including the Liaoshen Campaign, the Huaihai Campaign and the Pingjin Campaign.