When the Yuan Dynasty in the north was fully researching artillery, the south also began to make the Tushen Cannon, all the resources that could be used, plus the use of the Tushen Cannon on the battlefield before, some data obtained, the research progress was accelerated again, from the original two-percent explosion rate to one-percent, and the firing range was also increased to a range of two hundred and sixty meters!

With the order of Ren Yingying's war preparations, the south was fully mobilized by the government organized by Ren Yingying, and the steel mills and gunpowder factories all began to build artillery on a large scale.

"Bury it, fire it!"

'Boom!'

One by one, the earth cannons were transported out of the factory and distributed to the subordinates of various armies, and they began to quickly control the use of the earth god cannons before the war, and saved the problems on the battlefield!

Under the mobilization of the entire south, in just one month, the Tushen Cannon has created tens of thousands, in this regard, Ren Yingying is happy, although it cannot be compared with the output of billions and tens of billions of modern industry, but this is also the limit of ancient mobilization!

As for saying that the protagonist is from the modern era, why not engage in the industrial revolution, I just want to say brother, you don't use the knowledge in school for thirty years, you can still remember a periodic table, even if you are awesome, and to engage in the industrial revolution, it is better to wash and sleep!

After the Tushen cannon was good, the 100,000 troops that had expanded to the south were divided into ten roads, each carrying a thousand Tushen cannons, and directly crossed the Yangtze River by boat, three days later, 100,000 people with the Tushen cannon all arrived on the other side, although those cities on the other side of the Yangtze River knew that the southern thieves wanted to cross the river to fight, but they were afraid of Zheng Wanglong's record of leading 10,000 people to repel a million people, and no one dared to stop the southern army that crossed the river, and the consequence directly caused the only opportunity for the Yuan Dynasty to cause a large number of casualties to the southern army!

After the landing next, it is easy to say, the Tenth Route Army is in accordance with the arrangement arranged in the combat meeting between Ren Yingying and all the officers at the beginning, and it is close to Nanjing, Hefei, Xiangyang, Chongqing, Chengdu and other places, and there are Tushen cannons to open the way, the strongest cavalry of the original Yuan Dynasty has all lost its effect, and it is okay to see it from a distance, once it dares to rush up, such a long distance of 100 meters to 260 meters will definitely become a nightmare for cavalry!

Outside the city can not win, the generals of the Yuan Dynasty naturally transferred the battle to defend the city, but in this era even the trebuchet of the return cannon can break the city, not to mention the weapons that Ren Yingying took from later generations, when a team of 10,000 troops came to Nanjing with the Tushen cannon, in the face of the closed city gate of Nanjing, the commander first took the soldiers to bury the Tushen cannon unhurriedly, and then in the puzzled eyes of the Mongolian nobles in the city of Nanjing, directly bombarded the past, and then in a shocking loud noise, the city gate of more than ten meters was shattered, in the dull eyes of a group of Mongolian nobles and soldiers defending the city, the army of 10,000 people instantly rushed into the city, and all the defenders were suppressed, the Mongolian nobles were beheaded, and in less than half an hour, Chengdu changed its owner!

"Li Qing, after you collect the weapons of these defenders, they will be seized first, and after we leave, you will lead a hundred people to be stationed in Chengdu, do you know?"

"Yes, General!"

The one who was called the general was a young man in his twenties, one meter eight tall, in his prime, although he did not look handsome, but his face was full of confidence and stability, he was one of the children who Ren Yingying personally taught back then, after the order was issued, his subordinates named Li Qing disarmed the soldiers and detained them, and the politics of Chengdu were temporarily replaced by the hundred civilian soldiers who had studied in the south, and the remaining 9,900 people continued to march to the north!

At this time, the 100,000 army sent by Ren Yingying was like devouring a giant beast, and a large area of land in the north was encroached, and so on three days later, when the emergency report arrived in Dadu, the 100,000 army had already arrived at the edge of the Yellow River, no matter how incredulous the Yuan Dynasty was, or sent troops to help, the 100,000 army had already begun to prepare to cross the Yellow River, forcibly expropriated the boats of the fishermen and the government, and almost transported more than half of the more than 90,000 people over two days later, and at most one day when everyone could be transported over, but it met with the 30,000 Mongolian cavalry and 60,000 Han soldiers temporarily organized by the Mongols！

"The traitors want to cross the Yellow River, everyone rush, stop them!"

At this time, at the forefront of this Yuan army, a Mongolian general wearing a general armor and a pair of braided heads was roaring loudly, he was Chakhan Timur of the Yuan Dynasty, of course, everyone may not be familiar with this Mongolian name, but if you say its name, everyone may understand, King Ruyang, who is also Zhao Min's father, is a good warlike person in history, and has also quelled many rebellions in the Central Plains, and it is normal for the Yuan Court to send him out!

However, the cavalry and scattering are outdated after all, and the scouts in the 100,000 army have already discovered the traces of the Mongolian army, and thousands of earth cannons are buried under the sand, when the army led by Chakhan Timur is close to a hundred meters, many generals suddenly ordered to open fire, thousands of cannons fired in unison, thousands of explosives bags directly crossed the sky, sprinkled in the military formation, under the huge roar, thousands of explosives instantly exploded!

Just like that, thousands of Mongolian cavalry because of the rush too fast and thus died, when in the rear command of Chakhan Timur reacted, wanted to retreat, another round of explosives packed, after explaining thousands of Mongolian cavalry, Chakhan Timur finally led the rest of the troops began to return to Dadu in embarrassment, and tens of thousands of Han soldiers in the army were left in the nearest city by Chakhan Timur, hoping to block the southern thieves one or two!