Under the orders of Wei Dahai, the commander of the Tiger Legion, the Tiger Legion troops stationed in the Heishanzui area began to build defensive fortifications.

With a formidable enemy at hand, soldiers were also digging individual trenches on the spot with entrenching tools.

After the individual soldier's pits were dug, they were connected to each other to form a series of simple communication trenches.

One by one, Tiger Army soldiers, each carrying a flintlock musket made in Dongning, entered the trench and watched the front warily.

Meanwhile, the Tiger Legion's artillery units were also setting up artillery positions in the rear.

The reconnaissance troops were dispersed in a vast area in front of Black Mountain Mouth, keeping a close watch on the movements of the grassland bandits.

These grassland bandits arrived very quickly!

Just as Wei Dahai and his men finished digging the first makeshift trench, the grassland bandits arrived at the front line of Heishanzui.

Although the area in front of Heishanzui is located in a valley between two mountains, the surrounding area is quite spacious due to the flowing stream.

After the grassland bandits arrived, Shumulu ordered his soldiers to rest for a while.

Immediately, tens of thousands of grassland bandit cavalry charged towards the position of the Black Mountain Tiger Army.

These grassland bandits knew very well that they were completely surrounded.

If they don't fight desperately now, they're doomed!

Only by making a desperate attempt to break through can one have a chance of survival!

One by one, the grassland bandits charged forward.

Rumble!

Rumble!

The sound of horses' hooves echoed through the valley, and the mountains on both sides seemed to tremble slightly.

On the Heishanzui defense line, Tiger Legion soldiers stared intently ahead.

Before long, the figures of grassland bandits came into view.

"Everyone has one!"

In the trenches, a regimental commander shouted, "The enemy is coming! Everyone, be alert!"

The regimental commander's loud shouts echoed across the battlefield.

In the trenches, the Tiger Legion soldiers also roused themselves and began their final preparations.

Boxes of hand grenades were placed to the side.

Some soldiers wiped their hands on the ground and gripped their weapons tightly.

Meanwhile, the grassland bandits' cavalry were getting closer and closer in the valley.

The thunderous sound of hooves, like muffled thunder, grew even louder.

All the Tiger Legion soldiers in the trenches became tense.

Gradually, the distance between them grew smaller and smaller!

"beat!"

Once the vanguard of the grassland bandit cavalry entered firing range, a regimental commander shouted loudly.

Immediately, the Tiger Legion soldiers in the trenches aimed at the grassland bandit cavalry and pulled the trigger.

Bang! Bang! Bang!

A dense barrage of bullets shot out.

Like hail in a summer night, it pelted down on the grassland bandits and cavalry.

It was like an invisible scythe falling from the sky, slashing at these grassland bandits.

In an instant, clusters of blood blossoms flashed by.

The grassland bandits and cavalry suffered heavy casualties.

Even as some of the grassland bandits' cavalrymen in front fell from their horses, the grassland bandits' cavalrymen behind them did not stop at all and continued to charge forward.

The horses' hooves trampled the still-dead grassland bandits and cavalrymen on the ground, instantly turning the wounded into a pile of minced meat.

The sound of horses' hooves and screams!

Gunshot!

A tapestry of intertwined beauty!

Although the valley around Heishanzui is relatively wide, it still can't compare to the plains and grasslands.

On the mountainsides on both sides of the valley, the Tiger Legion soldiers who were building fortifications had an almost absolute advantage in terms of terrain.

Countless Tiger Legion soldiers, relying on the advantages of terrain and firepower, were in an absolute dominant position from the very beginning of this battle!

Meanwhile, the grassland bandits in the valley could only passively take the beating!

Even so, these grassland bandit cavalrymen continued to charge forward as if their lives depended on it.

On a high ground, Shumulu, riding a tall horse, squinted at the situation in the valley, his eyebrows raised.

Even Shu Mulu was somewhat shocked by the situation before him.

Having fought across the grasslands for so long, Shumulu had never seen a battlefield like this before.

You should know that in the past, the grassland bandits and cavalry were people who bullied others.

But now, everything has changed!

Once invincible, the grassland bandits and cavalry who roamed the grasslands, have now become fish on someone else's chopping board.

This contrast made Shumulu feel somewhat uncomfortable.

No matter how unpleasant it was, Shumulu could only passively accept this situation.

After all, there's no better way!

"Keep pushing!"

Shumulu roared in a deep voice.

Overwhelmed with patriotic fervor, Shumulu ceased his command and personally wielded his scimitar, joining the battle.

Bang! Bang! Bang!

On the battlefield, bullets flew everywhere, forming barrages that tightly blocked the entrance to Black Mountain Mouth Valley.

However, the firing rate of the flintlock musket made in Dongning was still too slow.

Despite the reckless charge of the grassland bandits' cavalry, some of them still managed to reach the front of the position.

Seeing this, the Tiger Legion Commander shouted in a deep voice, "Grenades! Throw them!"

Soldiers threw grenades forward.

Boom! Boom! Boom!

The grenade landed, and the resulting violent explosion caused heavy casualties among the grassland bandit cavalry once again.

On the battlefield, blood was everywhere, and flesh was mangled beyond recognition!

Severed limbs lay scattered on the ground!

It looked like a hellish scene!

"Go around the mountain!"

Shumulu squinted and ordered in a deep voice, "Quickly!"

Under Shumulu's orders, some grassland bandit cavalry dismounted and charged up the mountain towards the Tiger Army's position.

Before long, the vanguard of the grassland bandits rushed into the Tiger Army's position.

Meanwhile, the Tiger Legion soldiers fixed bayonets.

Let the melee begin!

The carnage erupted suddenly!

Fortunately, it was a valley area, which prevented the grassland bandits' cavalry from spreading out their formations, while the Tiger Legion soldiers used their bayonets to hold off the grassland bandits' charges.

In the rear, the Tiger Legion soldiers continued to hold their Dongning-made flintlock muskets, blocking the enemy troops in the valley.

For a time, the battle at Heishanzui was extremely fierce!

Rear command post.

Tiger Legion Commander Wei Dahai held a telescope, looking at the situation ahead with a furrowed brow.

"Tell the 11th Regiment to hold the line!"

Wei Dahai ordered in a deep voice: "Instruct the second, third, seventh, eighth and ninth regiments to dig trenches and construct defensive fortifications on the mountain in turn!"

Even if the 11th Regiment's position cannot be held, these grassland bandits must not be let out!

"yes!"

The staff officer beside him quickly responded.

"in addition,"

Wei Dahai frowned and continued to give orders: "Fifth Regiment, Sixth Regiment, guard the mountains on both sides! Be careful not to let the grassland bandits cross the mountains!"

"yes!"

As orders were relayed, the entire Black Mountain Mouth defense line was reinforced once again.