Why did confucius think the family was a good model for chinese society

They helped invent new military technologies.

Explanation:

The war changed decisively the march of the world economy. The belligerent countries had to adapt their productive system and resources to military use.

Heavy industry replaced the consumer goods sector in importance. The steelmaker acquired great importance, being essential in the production of steel and the manufacture of tanks, artillery pieces, airplanes, as well as all types of vehicles. The same happened with the chemical industry, essential for the production of explosives. The governments centralized and tightly controlled the productive system, with the consequent erosion of the private initiative of the times of peace.