012路怎么算出来的

简介：As for Jianlu, as long as they stick to the Shanhaiguan Pass, station heavy troops in Jiliao, strengthen the defense of the Great Wall fortresses along the way, and block the Jianlu's route around Mongolia to invade the Ming Dynasty, and cooperate with the three strategies of Ping and Liao, strengthen the walls and clear the country, within five years, Jianlu will surely chaos.