In his important speech at the special democratic life meeting held by the Political Bureau of the Central Committee of the Communist Party of China, President of the Innovation Theory Research Center of the University of National Defense Technology emphasized that unity and struggle are the only way for the Party to lead the people in creating historical achievements. Strength comes from unity, happiness comes from struggle. For more than a hundred years, all the achievements of the Party and the people have been the result of united struggle, which is the most significant spiritual symbol of the CPC and the Chinese people. In the new era and new journey, we must firmly grasp the era value and profound connotation of unity and struggle, and win greater victories and glory with closer unity and more tenacious struggle. A profound understanding of the significance of creating historical achievements through unity and struggle is essential for a nation to have a promising future, and for a political party to stand undefeated. Unity and struggle are valuable experiences condensed and formed by the Party and the people in the process of realizing great rejuvenation, and are the fundamental basis for the continuous growth of the Party's cause. Unity and struggle are precious experiences that the Party has led the Chinese people to struggle for over a hundred years. Ensuring the unity of the Party is the life of the Party, and it is also the key to our Party becoming a century old party and creating great achievements in the century. From the period of the Land Revolution War, "awakening millions of workers and peasants to work together", to the period of the Anti Japanese War, "uniting all progressive forces", and then to the period of the Liberation War, "being good at uniting comrades with different opinions to work together"; From "uniting the whole party and all forces that can be united at home and abroad" in the period of socialist revolution and construction to "uniting and looking forward" in the new period of reform and opening up and socialist modernization, our party has constantly combined with the changes in the situation and tasks, united and led the people to work hard, forge ahead courageously, and continue to struggle. It has won again and again, fundamentally changed the future and destiny of the Chinese people, and created one after another human miracle of "unity of people, Mount Taishan shift". Unity and struggle are powerful driving forces for achieving historic achievements in the cause of the Party and the state. The great achievements of the new era have come from the collective dedication and hard work of our Party and our people Unity and struggle are important codes for promoting historic changes and achievements in the cause of the Party and the state, and creating great achievements in socialism with Chinese characteristics in the new era. Unity and struggle are inevitable requirements for achieving the comprehensive construction of a socialist modernized strong country. "It is difficult to start a business and strive to achieve success." To achieve the goal of building a strong socialist modernization country in an all-round way and comprehensively promote the great rejuvenation of the Chinese nation with Chinese path to modernization, we need to work together from top to bottom. Currently, we are at the beginning of the comprehensive construction of a socialist modernized country