On April 26, 1215, the Shangdang Legion on the battlefield of Menglan County on the Eastern Front broke through Suizhou, the core town of the border defense of the Menglan Legion, and completely annihilated the 58th Army of the defenders in half a day, killing the commander Wang Ziang. Subsequently, in addition to the 500,000 cavalry troops that remained in Suizhou to burn and kill*, Chahe Buhua led the follow-up 1.9 million troops of the Shangdang Legion to detour through Suizhou and continue to advance westward.

After Suizhou was conquered, the next operational goal of the Shangdang Legion was naturally to clear the way for attacking the Crescent River Valley defense area. To the west of Suizhou and east of the Crescent River Valley, the Beihai Kingdom still had eleven cities and three relatively fortified passes. These cities and passes are distributed in the area from Suizhou to the Crescent River Valley. If Chahe does not spend a lone army going deep and directly attacking the Crescent River Valley, it will inevitably be flanked and flanked by the Northern Navy.

To be named the marshal of the Chengtian Empire, Chahe Buhua is not a brave and unscrupulous person as the outside world imagines. Otherwise, King Hailing would not have let him be the commander-in-chief of the Chengtian Empire's attack on Menglan County, and would give him the least amount of attacking troops. The fact is that the "Pulsatilla" Dadali commanded the two major armies of Tianlong and the Far North, with a total strength of 3.8 million. The Beihai County battlefield in the middle lane is not much to say, it is the main battlefield of the battle between the Chengtian Empire and the Beihai Kingdom, so it is natural to invest heavy troops. Therefore, King Hailing only gave Chahe Buhua a Shangdang legion, with a total of 2.4 million troops, which shows that Chahe Buhua is not an unscrupulous person.

The black torrent drove mightily on the avenue, and the dream orchid trees on both sides were covered by thick dust, and flower petals fell from time to time. Rows of soldiers stepped on the fallen petals, propelled huge siege chariots, clad in sturdy and sharp, and each step fell heavily on the land of the North Sea.

Chahe Buhua drove a high, blood-red horse, wrapped in a thick white cloth in the palm of his right hand, and carried one of his battle axes on his left shoulder, while the other battle axe was held by two other soldiers.

"Speed no platform, speed no platform!" Cha He Buhua suddenly shouted loudly.

"Subutai is here, I don't know what the marshal commands?" A Chengtian general riding a horse with a slightly chubby face came to Chahe Buhua.

"Subutai, now our army has taken Suizhou, and the front of the troops is directed at the Crescent River Valley, the core defense area of Menglan County. However, before we can do that, we must first defeat the Beihai cities and passes scattered along the offensive route, and eliminate the flank threat of attacking the Crescent Valley. Cha and Buhua said.

The marshal had a point. The slightly chubby Chengtian general said. Su Butai, the deputy commander of the Shangdang Legion, is actually the royal military division of Chahe Buhua. Before being promoted to deputy commander, he was originally just a staff member in the Chahe Buhua Army. Later, he came up with a lot of good strategies in many military battles, so he was deeply appreciated by Chahe Buhua. In the change of Chengtian and the seizure of the throne by King Hailing, Su Butai tried to persuade Cha and Buhua to be the first to support King Hailing, so he was valued by King Hailing and Cha and Buhua. As a result, King Hailing overrode public opinion and promoted Subutai to the deputy commander of the Shangdang Legion, which shows that he is a person.

Subutai and Cha and Buhua were parallel, patted the horse's head, frowned slightly, and then stretched out, revealing a hint of conspiracy.

Chahe Buhua smiled evilly when he saw the speed, so he pretended to be dissatisfied and said, "Strategist, what bad ideas have you thought of again?"

"Oh, Marshal Qiyu. Subutai was thinking just now, the total strength of the Menglan Legion is only 700,000. And Tongtian City, Menglan City, and the Crescent River Valley are the three strategic points that they must defend with heavy troops. Then, the enemy army in the area from Suizhou to the Crescent River Valley will definitely not be the elite troops of the Menglan Legion, and the battle of Suizhou is enough to prove it. As far as I know, the 58th Army is a new army that the Beihai Kingdom just formed half a year ago, and Baishi has such a new army as the forefront of the enemy, which means that his current idea is to stick to the Crescent River Valley and wait for the direction of the battle situation in the main battlefield in the middle. Since the Beihai army in these strongholds is not the elite of the Menglan Legion, then, as long as there is a little trickery, it is not a problem to annihilate them all. ”

"Oh, what is the opinion of the military advisor? This commander thinks that if the Beihai army flees from the wind, it will be very difficult for our army to completely destroy these enemy forces. Cha He Buhua said with a little doubt.

Hearing this, Subutai replied affirmatively: "Marshal, no matter how strong these strongholds are, it is only a matter of time before they are taken. However, if these enemy forces are allowed to retreat safely to the Crescent River Valley, it will undoubtedly greatly increase the difficulty of our army's attack on the Crescent River Valley area. Therefore, the next tactical goal is to eliminate the Beihai defenders from Suizhou to the Crescent River Valley and weaken the living force of the Menglan Legion. The last general proposed that the marshal personally lead a cavalry into the Crescent River Valley to cut off the retreat of the Northern Navy. At the same time, our army divided into multiple routes and stormed the passes of each city, but it was necessary to surround three and lack one, deliberately leaving the enemy a way to live. After all the three passes and eleven cities fall into my hands, I will lead the main force and the marshal to attack on both sides, and eat this group of retreating troops in one bite. ”

"Oh, that's good. It's just that in this way, Ben Shuai may have to bear the danger of being flanked by the army of the Crescent River Valley, I don't know what the military advisor thinks about this?"

Su Butai coughed embarrassedly, and seeing that Cha He Buhua's face was not good, he immediately threw out a high hat and said quietly: "Marshal, as the saying goes, if you don't enter the tiger's den, you will get the tiger?" Suizhou was broken by our army in half a day, and the other Beihai defenders must not have known about it. At this time, the marshal quietly penetrated directly into the rear of the enemy army, and it was inevitable that he would not be detected. What's more, our multi-way army divided its troops and stormed the major strongholds and fortresses at the same time, and those Beihai defenders were still too busy to take care of themselves, and they simply had no spare strength to track down the traces of the marshal. In addition, it takes a man of both wisdom and courage to penetrate into the rear of enemy forces. In the legion, no one can take on this important task except the marshal himself. ”

"Hahaha! Subutai, you guy just speaks well. However, your plan is indeed a miracle move, and besides, the strength of the Beihai army is inferior to ours. In this way, in order to ensure that nothing goes wrong, Ben Shuai personally led half of his own pro-army of 50,000 people to ambush the Beihai troops on the retreat road. By the way, Subutai, where do you see the best place for Ben Shuai to hide and set up an ambush?" Cha He Buhua asked.

"Marshal, wait a minute, herald, map!" Subutai summoned a herald and took the map of the North Sea in his hand. After finding Suizhou, Subutai's right index finger went all the way west and finally landed on a valley.

"Marshal, this is it, Caoyi Valley. This valley is the only way to the Crescent River Valley defense area, and if the Beihai army retreats, it must be passed. The marshal only needs to lay an ambush here, first set up an ambush, and then block the valley mouth, and the retreating army in the North Sea will be unable to fly. ”

"Okay! Ben Shuai is lying in ambush here, waiting for the enemy. By the way, how much time does it take for Ben Shuai to reach Caoyi Valley?" Cha He Buhua looked at the map and then asked.

Subutai looked at the terrain of Menglan County, pinched his fingers and calculated, and said frankly: "Because I can only walk on small roads, and I can't ride horses." Therefore, if the marshal marches in a hurry, it will take about two and a half days to reach Caoyi Valley at the earliest. ”

"Well, in that case, Ben Shuai will lead 50,000 elites to Caoyi Valley. In these two and a half days, I hope that the military division will not let go of a single Beihai soldier. "Cha and do not spend a hand.

"The last general should go all out and make immortal achievements with the marshal!" Su Butai also gave up.

After the two said goodbye, Chahe Buhua led 50,000 pro-troops to quietly break away from the large army and move forward covertly along the mountain road on both sides in the direction of the Crescent River Valley......