The rapidly advancing Defense Force surged forward like a torrent of steel, quickly closing to within five kilometres of the industrial city.
With the aid of high-tech equipment, the industrial city's towering walls could be seen in the distance, standing upon the earth like a massive fortress.
"Attack!"
The Defense Force regiment commander issued a cold, merciless order to all Apocalypse Tank drivers over the communications channel. His voice was filled with authority and resolve, as if he intended to wipe out the enemy in one stroke.
"Yes, Commander!"
After receiving the regiment commander's order, the Apocalypse Tank drivers carried it out without hesitation.
They swiftly and expertly controlled their Apocalypse Tanks, adjusting their angles and locking onto their targets as they prepared to bombard the distant industrial city.
In an instant, twenty thousand Apocalypse Tanks opened fire at once, launching a savage bombardment against the distant industrial city.
Their enormous gun barrels flashed with dazzling fire, accompanied by deafening roars.
"Woooo..."
"Boom, boom, boom..."
Shrill detonations rang out above the industrial city. Every siege shell fired from the thick barrels of the Apocalypse Tanks carried immense impact and destructive force.
The shells traced graceful arcs through the air before crashing heavily into the industrial city's walls and erupting in violent explosions. The tremendous booms of the exploding siege shells carried across a great distance.
Large numbers of Planetary Defence Force soldiers were not directly killed by the exploding siege shells, but were caught in the shockwaves and sonic blasts they generated, dying from the force or being crippled.
The sturdy wall structures were easily destroyed under the Apocalypse Tanks' bombardment. Vast amounts of building materials, shattered stone, and broken bricks flew into the sky before crashing heavily back down.
"Enemy attack! Take cover! Take cover, now!"
The Planetary Defence