Su Lu and his party went up to the city wall.

The Black Flag Army came out in all directions, and their horses ran around the city walls, looking for the birds in the sky that released their arrows.

"Lord Wang, in the northwest direction of Longya Mountain, I found something in the sky."

Ma Ping spotted a black spot in the northwest sky.

Everyone looked northwest and saw a big guy with wings parked in the sky not far from the top of Dragon's Tooth Mountain.

Hello everyone, the two wings above are constantly fluttering, the speed is very fast, about the size of a room, under the house, the arrows flashing with cold light are densely packed, and arrows are constantly shooting from under the big guys, and they fall in the Qin army scouts scattered below.

Su Lu is confused,, this thing is an airplane? Airship, or what?

The body is made of wood, and the white cloth is ......

It's too far away to see what makes the wings, but it's too mysterious.

Since coming to this world, Su Lu has finally encountered something that can subvert his three views, and now people's scientific and technological level can also fly into the sky.

"Let's go and see."

Su Lu said.

A group of generals surrounded Su Lu in an instant, so many arrows, if they go, they will not die or be crippled, Su Lu, the Dinghai Divine Needle of the Qin State, must not go to danger.

Xiang Chong looked resolute: "Lord Wang, what do you want to see, just go and see it at the end." ”

Cao Bao also stopped Su Lu: "Lord Wang, no, this big bird carries too many arrows, if you go, you will definitely not be pleased, in case there are three long and two short, we will be finished." ”

As a close minister of Emperor Qin, Cao Bao knew how much Emperor Qin valued Su Lu, in order to be able to stay Su Lu, it can be said that the people around Su Lu ascended to heaven because of Su Lu alone, if he has three long and two short, then it will be repaid.

Zhao Shuo also said: "Lord Wang, we don't need to pay attention to this big bird, he is very slow, we just need to strangle the barbarians." ”

Su Lu shook his head.

"I'm afraid this won't work, the barbarians transferred this kind of thing, obviously to cooperate with the infantry army to attack the city, we are unmoved, I am afraid that it will be their will, and when the barbarian soldiers come to the city, we will completely stop eating."

Several people immediately thought of that scene, the big bird flew above the city, shot countless arrows, swept away the soldiers who cleared the city, and the barbarians who rushed to the city easily occupied the city wall.

There was silence at the head of the city, and everyone thought of the terrible situation when the city was breached.

Su Lu kept his eyes on the big bird, wanting to see how fast the thing was, how high it could fly, how many arrows it could shoot at once, and how long the interval between shots was.

Cao Bao's voice sounded: "Lord Wang, you are the martial arts star in the sky, the god of war in the world, there must be a way to deal with this thing." ”

Su Lu Xindao naturally relied on anti-aircraft guns to deal with aircraft, and now we don't even have anti-aircraft guns, and there are anti-aircraft guns with wool.

His gaze unconsciously swept over the crossbow bed on the city wall, and Su Lu had an idea, and this thing seemed to be able to be used immediately.

Asked Xiang Chong next to him: "Among the barbarian weapons we have captured, how big is the largest crossbow bed?" ”

Xiang Chong looked around, stretched out his hand and took a long qiāng from the hand of the border soldier standing at the head of the city next to him, and weighed it.

"The thickness and length of the arrows fired are about the same as this qiāng, and the thieves shoot far, a thousand paces."

Su Lu nodded, in this case, there is still some play.

But to choose a reliable shooting location, the head of the city is definitely not good, once you reach the head of the city, the big bird will definitely increase the height, and the range of the ballista may not be able to reach.

It is necessary to choose a path that the big bird must take, set up an ambush high enough to defeat the big bird in one fell swoop.

"Come on, find a few ballistae who are good at shooting, and order them to shoot birds with ballistas, and they must be trained to shoot birds with ballistas."

"Scouts come out, don't face these big birds and barbarians, record the march route of this big bird, especially the high mountains and slopes it passes, all of them are clearly recorded."

Su Lu commanded.

The generals from all walks of life received the order, and they all carried it out quickly, and at the head of the city, only Su Lu and Cao Bao were left.

Cao Bao asked Su Lu: "Lord Wang, you just issued those military orders, didn't you want to take down these big birds?" ”

Su Lu pointed to the wounded scouts under the city, "Why not, since the barbarians dare to beat my people, I can't beat his people." ”

"Besides, this may be the supporter behind the barbarians, I want to see what kind of race has given such great support to the barbarians and provided such sophisticated weapons."

Cao Bao looked surprised: "We, can we shoot down this big bird?" ”

Su Lu squinted at the big bird in the west, and said indifferently: "If Gonggong Cao is interested, I will take you to see a ground air defense battle." ”

Cao Bao is confused, he understands the ground, he also knows what the big war means, and he also understands the defense and air, but as soon as he combines, he is blind, what does this Nima mean.

But it sounds high enough, and it was the prince who invited him to stay, don't look at it in vain, and after reading it, he can still talk to His Majesty when he goes back, so that His Majesty is happy and happy.

Twelve days later, the barbarian army regrouped, once again approached Longya Mountain and Tushanzi, and set up two large camps in two places, making a posture that would attack Liaoxi at any time.

The barbarian scouts went around, cooperating with the big birds in the sky to search for the Qin army scouts, and almost swept away all the Qin army scouts, making the Qin army completely deaf and blind.

The Governor's Mansion of Western Liaoning, presided over by Zhao Shuo, and a military meeting was held.

Su Lu pointed to the defense map and said the intentions of the barbarians.

"There are many fewer barbarians who came this time than last time, and the one who is worried is the big bird in the sky."

"With the information of these days, the flight route of the big bird is basically decided, everyone, in the near future, I will organize a ground air defense battle to completely defeat the big bird of the barbarians."

"This is Huzuizi Mountain, there is a high cliff on the mountain, easy to defend and difficult to attack, the big bird has landed here twice to repair, I intend to set up an ambush here, transport the crossbow bed four up, and defeat the big bird of the barbarians in one fell swoop."

Zhao Shuo frowned: "Lord Wang, you are not here, who will preside over the battle at the head of the city?" ”

Su Lu shook his head: "If I can take down the big bird on the top of the mountain, do you think the barbarians will still attack this Liaoxi?" ”

"If my guess is correct, once I shoot down the barbarian birds, the barbarian army will immediately turn around and rush straight to Huzuizi Mountain, and will not attack Liaoxi again, as long as I can hold Huzuizi Mountain, I will survive."

Cao Bao, who was present, was eager to try:

"Okay, a certain family commander will take the Ouchi guards and the Black Flag Army to accompany the prince to Huzuizi Mountain, and together with the prince, shoot down the barbarian birds and exterminate the barbarian attack on the mountain."

The two bigwigs have spoken, and the generals don't even have the right to refute, and a few thoughtful ones can only think about what kind of bed crossbow to bring over, and they need to bring more crossbow arrows, and in the face of barbarian attacks in the back, how many arrows will be needed to block it.

Su Lu commanded: "Tomorrow the barbarians will attack the city, and tonight the crossbow bed will be transported up the mountain overnight, and all must be in place before dawn tomorrow." ”

After Su Lu finished speaking, he got up and looked at the generals: "The head of the city must also be defended, when I am not there, Xiang Chong will lead the army, and Zhao Shuo will dispatch in the center, be sure to block the barbarians, and hold on until I shoot down the big bird, don't want me to be broken by the barbarians, but the head of the city is broken, then it is not good." ”