This word was written in 196 1 and was first published in1963+Poems of Chairman Mao published by People's Literature Publishing House in February. At that time, the international environment facing China was the blockade of Europe and the United States, and the Soviet Union turned its face; The domestic environment we are facing is economic difficulties and disasters. Faced with difficulties and pressures, Mao Zedong wanted to show party member's attitude and fighting spirit, so he planned to write this word. Hope to adopt.