The main contents of Shang Yang's reform and strengthening the army are:
First, abolish the stone clearing system, reward soldiers and prohibit private fighting. Before the Qin reform, the Qin law allowed private revenge, but the old Qin people were very hot-tempered, so large-scale wars continued all over the country, and infighting seriously caused huge population losses and accumulated a lot of hatred. After Shang Yang's political reform, it was stipulated that private fighting was not allowed and civilians were encouraged to join the army. Civilians can be awarded titles after meritorious service in the army, and a system of conferring titles according to military merits has been promulgated, which makes Qin people brave in fighting for their country and not afraid of private struggles.
Second, expand the scope of conscription and implement the county conscription system. In this way, there are more sources of conscription and the number of soldiers has greatly increased.
Three, clean up the country to prepare the population of each household, with five households as the unit, one electoral officer, ten households as one person, and one electoral officer responsible for management. In addition, national laws also stipulate that every resident must register for household registration and levy military tax according to the population.
After Shang Yang's political reform, Qin abolished backward related systems, which made Qin's economy develop rapidly, and its fiscal revenue increased greatly, thus solving the dilemma of insufficient national military expenditure. In addition, Shang Yang also adopted the policy of emphasizing agriculture and restraining commerce, encouraged the normal development of agriculture, and provided a large amount of military food for the national war of conquering the south and the north. The most important thing is that Shang Yang's political reform banned private duels, gave titles to ordinary people with military achievements, and formulated a system of 20 titles, which made everyone in Qin Jun brave and good at fighting, and the combat effectiveness of the army also improved rapidly, which also laid the foundation for the final reunification of the six countries.