Frederick the great's achievements are reflected in many aspects, including military affairs, politics, diplomacy, art and language. But the greatest achievement is in the military. Frederick the great showed great military talent in his early years. At the beginning of his accession to the throne at the age of 28, he led the Prussian army to participate in the Austrian succession war and won the vast and fertile land of Silesia for Prussia. The value of this land is not only reflected in today's economy, but also in today's military, providing Prussia with a solid military defense line. This was vividly reflected in the Second Silesia War and the Seven-Year War. Later, in the Seven-Year War which broke out in 1750, frederick the great fought the French, Austrian and Russian allied forces, which were the world powers at that time, with Prussia alone. The number of troops in these three countries alone was equivalent to three times the total population of Prussia at that time. Although frederick the great suffered many defeats and wars, he became more and more brave, and finally won the victory of the Seven-Year War and saved Silesia.

Through the seven-year war, Prussia not only expanded its territory, but also became a European power that was tied with Britain, France, Austria and Russia at that time. Later generations called him a "military genius", and the Prussian people were even dubbed "the Great". Frederick the great's achievements are also outstanding politically. He was one of the first kings in Europe to put forward the slogan "Everyone is equal before the law". He was also extremely tolerant of pagan policies, and put forward suggestions to abolish serfdom and improve the treatment of helpers and domestic workers. Its enlightened policy was extremely rare in the world at that time. During the reign of frederick the great, the territory of Prussia doubled (the original territory of Prussia was only 1 10000 square kilometers, but it soon reached 220000 square kilometers). From the first partition of Poland, the alliance with Britain and many other aspects, we can see its excellent diplomatic means.

For the evaluation of frederick the great, later generations usually compare him with Alexander the Great, Julius Caesar, Hannibal lecter, Gustav Adolphus and Napoleon. Thus, frederick the great's military achievements are enough to rank first in the world. Frederick the great's first battle after he ascended the throne was the Austrian succession to the throne. At that time, he occupied Silesia and held the place under the repeated counterattacks of the Austrian army. From this point, it is enough to see its excellent military strategy and superb political vision. In fact, it was this place that became one of the main economic sources of Prussia in the future. It is said that Silesia alone accounted for one third of Prussia's total fiscal revenue, which laid a solid economic foundation for the next seven years' war. During the seven-year war, frederick the great's military talents were brought into full play. Especially the battles of Rosbach and Leuten, perfectly demonstrated his ability to control and command the army. Later, another famous strategist, the French emperor Napoleon, said of frederick the great: "The more critical he is, the greater he is. This is the highest compliment we can give him. 」

1785 At the Silesia military parade, Lord York of Britain, General Cornwallis of the United States and Marquis of lafayette also attended. After watching the Prussian soldiers' drills, they all admired frederick the great's arrangement, and brought his drills back to China to imitate them. In addition to the military, he is also gifted in art and linguistics. He can write flute music by himself and speak ten languages. He is a versatile king.