On this day, 134 years ago, on April 24, 1891 (March 16, 1891 in the lunar calendar), the chief of the General Staff of Prussia and Germany and the famous military strategist Moltke passed away. Helmut Karl Bernhardt von Moltke (1800~1891), chief of staff, famous strategist. The actual organizational commander who defeated the Austrians and French forces in the Prussian and Prussian wars. Also known as Lao Mao Qi, to distinguish him from his nephew Xiao Mao Qi. Born in 1800 in Parhim, Mecklenburg, into a dilapidated aristocratic family. His father was a Prussian officer and later moved to Denmark. Moltke began his education in Holstein at the age of 8, entered the Royal Military Academy in Copenhagen at the age of 10, and entered the Danish Army at the age of 18. In 1822, he passed the exam and transferred to the Prussian Army, earning the rank of second lieutenant. The following year, he entered the Berlin Army Academy for further study. In 1838, due to the publication of "On the Outline of Military Surveying and Mapping", it attracted the attention of the military community and was transferred to work in the Surveying and Mapping Bureau of the General Staff Headquarters. From 1835 to 1839, he was sent to Turkey as a military adviser to the Ottoman sultan. In 1840, he was transferred back to Berlin and served in the Staff of the 4th Army. In 1842, he participated in commanding the construction of the Hamburg-Berlin railway, from which he realized the important role of the railway in military mobility and logistical support. After that, he served as an aide to Prince Henry and served in the staff headquarters of the 8th and 4th Corps. In 1855, Moltke was transferred to serve as an aide to Prince Friedrich Wilhelm. From then on, he had close contact with the later king of Prussia and German Emperor Friedrich III, using the "sword" for the king to the last moment of his life. Due to the king's trust and promotion, he served as chief of the General Staff of the Prussian Army for a long time from 1857 to 1888. During his term, he boldly reorganized the General Staff Headquarters, expanded armaments, and improved equipment. At the same time, he is actually responsible for the operational command of the Prussian army. In 1864, he led his army to defeat Denmark. In 1866, the War against Austria was won. After the Franco-Prussian War broke out in July 1870, he led three legions to face the French army and achieved a decisive victory in the Battle of Sedan, making a significant contribution to the realization of German reunification. The king therefore claimed that he had "used the sword well," made him count, promoted him to marshal, and appointed him chairman of the National Defense Council after his retirement in 1888. He is the author of "Collection of Moltke's Military Essays" and "Military Lessons (Preparations for Warfare)", etc., which have a great impact on military history and are worthy of study by future generations.