Remember history and national humiliation. Write a letter on the subject.

You will be beaten if you fall behind.

Since 1840 Opium War, China has gradually changed from a "paradise" to a "sick man of East Asia", and the status of China people in the world has also plummeted. The reason is that China has been closed to the outside world for a long time, resulting in poverty and weakness, and the overall economic and social backwardness. As a direct result, it has been repeatedly defeated on the battlefield and signed unequal treaties. Profoundly expounded the truth that backwardness will lead to beatings. The treaty of nanking, the Peking Treaty, the Sino-French New Testament, the treaty of shimonoseki and the Sino-Ugly Treaty are all eternal humiliations deeply imprinted in the hearts of every China person. Although, with the establishment of the new China, we turned over and stood up, but "forgetting the war will be dangerous". If we are not enslaved, we cannot forget the national humiliation.