Time passed second by second.
As the sun set, faint sounds of horns and shouts of battle finally drifted from afar—Guo Luo had made his move.
The Northern Di garrison at the valley entrance stirred, and some of them ran towards the front mountain pass.
"Now!"
Wu Shangzhi mounted his horse and shouted, "Archery battalion, fire!"
Three thousand archers emerged from their hiding places, unleashing a rain of arrows.
Caught off guard, the garrison at the valley entrance fell in droves in an instant.
"Mo Dao Battalion, charge!"
Wu Shangzhi took the lead, followed closely by two thousand Mo Dao warriors, like a sharp knife piercing into the valley entrance.
With a wave of his longsword, those who dared to block his path were utterly defeated.
The Northern Barbarian garrison was already small, and after being attacked, it quickly collapsed.
Five thousand Yin soldiers charged into Black Wind Valley.
Just as An Dehai had said, the valley was an open area where thousands of Northern Di soldiers were stationed.
They were clearly caught off guard by the attack from the rear and were forced to hastily respond.
"Don't linger! Charge forward!" Wu Shangzhi shouted.
The procession surged across the open ground like a torrent, heading straight for the front mountain pass.
Wherever they went, the Northern Di army was thrown into chaos.
Meanwhile, at the front of the mountain, the battle had reached its climax.
The mountain pass in front of the Black Wind Valley.
Guo Luo commanded the main force to launch a fierce attack.
The Shenji Battalion's new artillery bombarded the area in turn.
Boom boom boom!
The shells shattered the wooden fences and stags at the mouth of the valley.
The Northern Di garrison hid behind fortifications and fired arrows, but the Yin army's crossbows had a longer range and greater power, keeping them pinned down.
"Heavy Cavalry Battalion, prepare!" Guo Luo ordered.
A thousand heavy cavalrymen had already formed ranks, all clad in iron armor, resembling steel behemoths in the setting sun.
This is the decisive force; once it charges, it will destroy all resistance.
But Guo Luo is waiting.
When chaos erupts in the valley.
Just then, a commotion, shouts of battle, and the whistling of a long-handled sword cutting through the air came from inside the valley.
"General Wu has succeeded!"
Guo Luo's eyes flashed with a sharp light. "Heavy cavalry, charge! All troops, advance!"
"kill--!"
The heavy cavalry began to accelerate, their iron hooves thundering as they pounded the ground.
Following closely behind were the light cavalry and infantry battalions, which surged toward the valley entrance like a tide.
The Northern Di garrison in the valley was attacked from both sides, and their morale was thrown into chaos.
Wu Shangzhi pierced through from behind like a sharp knife, while the heavy cavalry charged forward like a torrent. They were caught in the middle, unable to advance or retreat.
The battle lasted for an hour.
By the time the sun had completely set, Black Wind Valley had been taken over by the Yin army.
Of the ten thousand Northern Di soldiers defending the area, four thousand were killed in battle, three thousand were captured, and the rest scattered and fled into the mountains.
The Yin army suffered fewer than a thousand casualties, most of which were losses from Guo Luo's frontal assault.
The two armies met in an open area.
"General!" Guo Luo rode up and breathed a sigh of relief when he saw that Wu Shangzhi was safe and sound. "You're finally back! I've been worried about you day and night for the past four days."
Wu Shangzhi dismounted and patted him on the shoulder: "You've worked hard. A frontal assault must have been quite stressful."
"It's alright." Guo Luo grinned. "It's just that the artillery fire wasn't satisfying enough, for fear of accidentally hitting you."
The two inspected the battlefield side by side.
The Northern Barbarian prisoners were put under centralized custody, and the wounded soldiers received medical treatment.
The army's medical team was formed by drawing personnel from the medical clinic established by Ma Bao, a veteran of Yanqingdun, and had strict treatment procedures.
"General, what should we do with these prisoners?" Xi Sheng asked.
Wu Shangzhi pondered for a moment: "The usual procedure, dig a hole and bury it!"
"As for those officers, detain them in solitary confinement; I want to interrogate them first."
"yes!"
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