Introduction to the relief wall: During the Sino-Soviet border negotiations in 1964, the Soviet Union prepared to return Zhenbao Island to China, but the negotiations were suspended due to the deterioration of Sino-Soviet relations. In 1969, with the approval of the Central Committee of the Communist Party of China and Mao Zedong, Chen Xilian, commander of the Shenyang Military Region, deployed the "Zhenbao Island Counterattack" on Zhenbao Island in March. The war started on March 2, and China took control of the entire island after more than 10 days. This battle is called "Zhenbao Island Defense Battle" or "Zhenbao Island Self-Defense Counterattack" by China.
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