If a country is not strong, it will be beaten if it falls behind. History has taught us profound lessons. Tell us your understanding of this sentence based on your historical knowledge.

The Qing Dynasty best embodies this sentence. Since the Opium War in 1840, China has not had a strong military force. Using our spears and spears to attack the British foreign guns and artillery is of course an egg against a stone. After a series of wars, including the Second Opium War, the Sino-Japanese War of 1894, the Eight-Power Allied Forces' invasion of China, etc., all of them proved the correctness of this sentence. Also, China, which was originally the victor at the Paris Peace Conference after World War I in 1919, did not take the initiative. This may be due to this reason. So today we should first develop the economy and make ourselves stronger. . . . . This is my answer based on what I have learned, I hope it will be of some help to you.