I felt the revolutionary spirit of the ancestors of the ship administration and navy who were not afraid of hardships and death from three major confrontations. The modern navy of China, which originated from the ship administration, experienced two great tests of blood and fire, namely the Battle of Majiang in Shen Jia (1884) and the Battle of Wujia (1894). In the battle against foreign invasion, patriotic soldiers dyed the tragic background of China's modern navy with blood.