Please analyze the reasons for the change of naval power in different periods from the weakness of China's modern navy to the strength of its contemporary navy.

The Beiyang navy of the Qing dynasty, whose equipment was the most advanced in the world at that time, was wiped out in the Sino-Japanese War, the main reason for this is that the leaders did not pay much attention to it. In feudal society, the Chinese government paid attention to the defense of the inland borders, but ignored the sea defense, and the attack of western capitalism started from the sea. In the background of the establishment of the Beiyang navy (foreign affairs movement) under the Chinese naval defense although there is a certain development, but the rulers still did not pay enough attention, Cixi misappropriation of military expenses to organize the 60th birthday, Li Hongzhang enrichment of private pockets, its internal equipment backward, coupled with the quality of the soldiers under.

After the founding of New China, the old generation of revolutionaries such as Mao Zedong attached great importance to sea defense, the country is strong, science and technology to strengthen the military, coupled with the quality of the soldiers to enhance the quality of the *** with the impact of the contemporary naval power