Great changes have taken place in China's modern society. Due to the invasion of western powers and the rule of domestic feudal dynasties, the original feudal society began to become a semi-colonial and semi-feudal society. Since the Opium War, China's independence and territorial sovereignty have been continuously lost, and foreign invaders have followed one after another. In order to seize more and more aggressive rights and interests, a series of unequal treaties have been imposed on China, and the Chinese nation is facing an existential crisis. Faced with the double oppression of Chinese and foreign reactionary forces, the people of China waged an indomitable and heroic struggle. After many twists and turns, they made great sacrifices. Finally, under the leadership of China's * * * production party, he chose the socialist road, overthrew three big mountains and established a new China. History shows that China, with a long history and splendid culture, has fallen behind after the development of capitalism in the west, so it was bullied and slaughtered. Under such circumstances, the road for China people to save lives and revitalize themselves is very difficult and bumpy. Countless outstanding Chinese sons and daughters are willing to sacrifice everything. For this lofty goal, they fought bravely and won one victory after another. Their fighting spirit will always inspire future generations to move forward.