Cement can be put into use immediately, and a broken city wall can be repaired with hundreds of kilograms of cement.

This gelling agent, which can quickly become strong, plays a huge role in defending the city. When there is a large gap in the city wall, just pour the mixed cement into it.

So now, whether it is Fancheng or Xiangyang, the city walls look strange. Some are made of bricks, and some are cement, which looks inappropriate.

However, it doesn’t matter whether it looks good or not. What is important is to guard these two cities.

These two places are so important. As long as you keep here, there will be no problem with the Yangtze River defense line, and the Song Dynasty will have time to breathe.

If these two cities are lost, the Yangtze River defense line will collapse, and it will be a matter of time before it reaches Lin'an.

After transporting the cement trip, it finally became dark and you can't use hot air balloons at night, just in time to take a breath.

However, even though at night, the Mongolians showed no sign of stopping the offensive, and almost no artillery on the city walls fired, the Mongolian soldiers seemed to be afraid of death and rushed forward desperately.

Unfortunately, the arrow tower built with cement outside has been built, and the Mongolians also have muskets in their hands. Now they send hot air balloons to fight, which is to send heads to send people.

Song Chen and Qiu Yingying also picked up No. 1 and pointed at the enemy under the city. Both of them almost shot one by one.

Shang Yidao's flying sword often takes the life of an enemy army, and Li Ruyun's sword is also very powerful. Both of them are fighting in the most dangerous section of the city wall.

It was the existence of these two masters that did not cause the Mongolian soldiers to rush in. They just managed to hold on for a long time, and spent the last pack of cement, and finally blocked the city wall.

The situation is not good. Now the one standing on the city wall is all the military power, less than a thousand people. If reinforcements don't come tonight, there will be no suspense about the loss of the two cities.

Song Chen felt it was ironic. Due to the arrival of his time traveler, he did not expect that the situation would worsen in the end.

In the original history, Mongolia did not use all its power to the weak opponent of the Southern Song Dynasty. This time, his "little butterfly" may have put too much pressure on Mongolia, so they were asked to concentrate their efforts to deal with it.

A fifty-degree bend came and avoided three approaching arrows. If it weren't for the strengthening of his physical coordination, Song Chen would have become a hedgehog.

He saw nearly a hundred light spots in the distance, and the Mongolian ships were friendly forces, and Song Chen, who was already extremely tired, immediately became energetic.

"Grand Tong, let's make a bet. Are those light spots of you Song ships or Mongolian ships?" Song Chen asked as he looked at Qiu Yingying and threw a whip, knocking down a soldier who was about to climb the city wall.

"What are you going to bet on?" It can be heard from the voice that Qiu Yingying had almost reached the limit of her physical strength.

"Bet you can talk to me in a nice voice in the future!" Song Chen picked up No. 1 and beat a Mongolian soldier to the point of his head, while talking listlessly.

At this time, the sound of cannons rang out, and the twenty Mongolian ships that had encircled traffic lines were sailing upstream early.

"It's reinforcements, there are thousands of ships, brothers, guard them!" Song Chen didn't know where the strength came from, and just shouted like that, with a loud voice.
Chapter completed!