With the suggestion of Sima Yi, Gunton were developed near the borders with the Go (Three States Period) (area along the Huai River) and Shu (Guanzhong), countries that they had long been in battle with, and Wei was able to have a stable supply of provisions, which was advantageous in fighting these two countries.
司馬懿の提言で、長期にわたる抗争を繰り広げていた呉(三国)・蜀それぞれの国境付近（淮河流域、関中）でも軍屯が展開され、これにより安定した食糧供給を維持した魏は、両国との争いを有利に進めた。