I traveled to the Three Kingdoms to be the overlord

Answer 1

If he transmigrated to the Three Kingdoms and became the overlord, he would have to start from many aspects.

* * 1. Military aspects **
1. * * Army Formation and Training **
- They paid attention to the construction of infantry. During the Three Kingdoms period, infantry was the main combat force. They had to recruit soldiers with combat potential like Cao Cao's Qingzhou soldiers and give them strict military training, including array drills (such as fish scale array, crane wing array, etc.) to improve the soldiers 'cooperative combat ability.
- In the north, the mobility advantage of cavalry was obvious. He could learn from Gongsun Zan's White Horse Righteous Servant or Ma Chao's Western Liang Iron Cavalry to cultivate excellent horse breeds and train the cavalry's riding, archery, and assault tactics.
- The navy could not be ignored either. In the battle in the Yangtze River basin, the navy was crucial. For example, Sun Quan's Dongwu Navy had many types of warships. The soldiers were familiar with naval warfare, so they needed to work hard on shipbuilding techniques and sailor training.
2. * * Military Strategy **
- If they were in the north, they could imitate Cao Cao's strategy and hold the emperor to command the vassals. They would occupy a favorable position in politics and then gradually eliminate the independent forces in the north, such as Yuan Shao, Yuan Shu, and Lu Bu. He would first unify the north and use the population and resources of the north to lay the foundation for further south or west.
- If he was in Shu, he would be like Liu Bei, stabilizing the base of Yizhou, paying attention to the defense of Hanzhong, and using the natural barriers of Shu to defend. At the same time, he planned to attack the Northern Expedition, seize the Guanzhong region, and then the Central Plains.
- If it was in the Jiangdong area, the Yangtze River should be used as a natural barrier to develop the navy and protect the people. When the northern regime was in civil strife or weakened, they could wait for an opportunity to go north. For example, Sun Quan went north to Hefei many times.

* * 2. Political aspects **
1. * * Talent selection and appointment **
- Establishing a diverse talent selection mechanism. Apart from recruiting talents from the aristocratic families, such as Xun Yu and Zhuge Liang, they also had to pay attention to the potential of the Humble Class disciples. Through recommendations, examinations, martial arts competitions, and many other methods, talents in military, political, cultural, and other fields could be selected.
- For talented surrendered generals and strategists, they should be trusted and put in important positions, such as Cao Cao putting Zhang Liao in an important position, Liu Bei putting Huang Zhong in an important position, etc.
2. * * Political system construction **
- Establishing a central power system to weaken the power of the local tyrants and prevent them from splitting up. He strengthened the supervision of local officials, set up provincial governors and other official positions, and regularly assessed local governance.
- The implementation of the rule of law, the formulation of clear legal provisions, to ensure that there are laws to follow, law enforcement must be strict, such as the Qin State after Shang Yang's reform, ruling the country by law can improve the efficiency and fairness of national governance.

* * 3. Financial aspects **
1. * * Agricultural Development **
- To promote advanced agricultural techniques, such as cattle ploughing and the widespread use of iron farming tools. Construction of water conservancy projects, repair and construction of irrigation channels in the north, maintenance of water conservancy facilities such as Dujiangyan in Shu, and reclamation of rice fields in Jiangdong to increase food production to ensure the food and clothing of the people and provide sufficient food and grass for the army.
2. * * Business Development **
- To encourage commercial trade, set up markets in cities, and regulate market order. To develop foreign trade, such as trading with the Western Regions through the Silk Road to obtain good horses, jewelry, and other materials, and to develop maritime trade in the Jiangdong area to exchange with Southeast Asia and other places to increase financial revenue.

* * 4. Foreign Affairs **
1. * * Dealing with relationships with other forces **
- If they were weaker, they could temporarily form an alliance with other factions, such as the Sun Liu Alliance against Cao Cao. Through marriage and sending emissaries to each other, they could consolidate their alliance and fight for an advantageous position in the alliance to fight against powerful enemies together.
- When one's own strength was strong, they could use the strategy of making friends with distant forces and attacking nearby. They could maintain friendship with distant forces and concentrate their forces to eliminate the surrounding independent forces.

* * 5. Cultural aspects **
1. * * Cultural construction and inheritance **
- To encourage cultural development, to attract scholars, and to establish schools. For example, the Jian 'an literature advocated by Cao Cao and his son could create a strong cultural atmosphere in the country and improve the cultural quality of the people. At the same time, it could also enhance the cultural soft power of the country.