The morning sky over East Java appeared calm, as if unaware that within minutes, the history of the Dutch East Indies navy would end in fire and explosions.
On an improvised airstrip on the outskirts of Sidoarjo, two Fokker F.VIII aircraft stood motionless. Originally, these planes had been designed as medium-range passenger aircraft—comfortable, stable, and never intended for war. But revolution recognizes no original purpose.
Today, both aircraft had been stripped of passenger seats, interior panels, and sound insulation. Mounted beneath the left and right fuselages of each plane were two massive naval torpedoes, each nearly five meters long and six hundred millimeters in caliber. The pale gleam of their steel bodies, combined with their tail fins, made them resemble gigantic sea creatures lying dormant.
Each torpedo had been armed with an impact fuse. Instead of being launched into the sea as intended, they would be dropped from the air, straight onto their targets.
A mad idea.
An idea born only of war.
Bar bar bar
The two Bristol Jupiter radial engines on the wings of the first Fokker roared to life. The coughing sputter of ignition transformed into a deep, thunderous growl. The massive propellers spun, kicking up dust and wind that lashed the faces of the mechanics on the ground.
Inside the cockpit, Hans Müller—a German pilot nearing forty and a former fighter pilot of the German Empire—let out a long breath.
"By God… I should have retired by now and opened a machine workshop," he complained in Indonesian heavily tinged with a German accent, glancing at the oil pressure gauge. "Not be flying a civilian aircraft with two live sea bombs strapped under its belly!"
His hands, however, moved swiftly and expertly. Fuel switches—secure. RPM—stable. Engine temperature—rising slowly, just as expected.
In the right seat, his co-pilot, a native man named Adhi, merely shrugged. His expression was calm, almost relaxed, though sweat had already soaked the collar of his flight suit.
"If this works," Adhi replied shortly, "it'll be a story our grandchildren will tell."
Hans snorted in irritation, rolling his eyes. "If it fails, we won't even leave whole bodies behind."
The green indicator light illuminated. Engines steady.
Hans pulled the brake lever.
The aircraft began to roll down the runway.
The strip felt far too short. Carrying nearly a ton of extra weight, the aircraft was being forced to do something that defied the laws of aerodynamics. The engines howled louder. Vibrations rattled through bone and muscle.
"Speed?" Hans shouted, eyes fixed forward.
"Not enough!" Adhi answered quickly, his gaze switching between the runway and the instruments.
The runway was nearly gone. Ahead, a wall of tropical trees loomed.
"Now!" Hans yelled.
They both pulled back on the control yokes. The Fokker's wings shuddered violently. The front wheel lifted—then slammed back down, bouncing hard.
The engines screamed as if being tortured.
Just meters before the first tree, the rear wheels finally left the ground.
The aircraft flew—not gracefully, but in a brutal struggle against gravity.
The second plane followed behind. Worse. Its right wing nearly clipped the treetops. Leaves scattered through the air. But finally, both aircraft clawed their way upward, staggering toward the skies of Surabaya.
They were alive.
For now.
---
Forty minutes later, two Fokker F.VIII silhouettes appeared above the city of Surabaya. They flew low—low enough to keep the torpedoes stable, high enough to avoid ground fire.
Cold sweat ran down Hans's back.
In the distance, Tanjung Perak Harbor was clearly visible. Long piers, steel warehouses, and at its center, a steel-gray sea giant.
HNLMS Java.
The pride of the Royal Netherlands Navy. Its guns pointed outward from the harbor. Long, sleek, and deadly. For the KNIL, the ship's presence was a symbol that they still ruled the seas.
Hans swallowed.
"Visual on target," he said quietly, maintaining steady control.
He turned toward the rear cabin, now packed with additional crew seated near the torpedo release mechanism—large steel levers that, once pulled, offered no turning back.
"Friends!" Hans shouted, his voice tight with adrenaline. "We're almost there! Prepare to release those cursed things!"
He faced forward again and barked instructions to his co-pilot. "Adhi! Reduce altitude!"
The aircraft began a slow descent. Sea wind slammed against the fuselage. Below, HNLMS Java grew larger—too large, too close.
"Distance?" Hans asked.
"Enough!" Adhi replied.
Hans drew a deep breath.
"Now!" he shouted.
"Release the package! Give the Dutch a spectacular gift!"
Clang!
Clang!
Two steel hooks disengaged. The first torpedo fell. Then the second.
The two massive steel cylinders plunged straight toward the forward deck of HNLMS Java.
The second aircraft, flying slightly to the left, banked sharply. Their target was not the ship, but the KNIL fortress guarding the harbor entrance. Two more torpedoes were released.
The sky over Surabaya suddenly felt silent.
---
On the outer deck of HNLMS Java, Rear Admiral Jan-Pieter van Oorschot stood with binoculars in hand. Sea wind tugged at his officer's coat. His face was hardened by experience.
He observed the harbor fortifications—concrete, steel, and weapons that now formed the last defensive line of the KNIL in Surabaya.
A distant boom echoed. Artillery fire from land.
"These rebels are strange," he muttered. "Their weapons… their discipline…"
To Jan-Pieter, the insurgents moved like a regular army, unlike the poorly armed and disorganized militias he had encountered before.
He lowered his binoculars. "Where are they getting all of this?"
The presence of field artillery among the rebels troubled him deeply. Where had they obtained such weapons? Heavy field guns were not sold like vegetables in a market—nor even available on the black market.
Beside him, Captain Martijn van den Hoorn stepped closer, visibly tense.
"No response from KNIL headquarters, sir," Martijn reported grimly. "I suspect they've fallen."
Jan-Pieter exhaled heavily. "The KNIL is no longer what it once was."
Once, KNIL had been the elite force of the Dutch East Indies, ruthless and disciplined in wars against local kingdoms. But after a century of relative calm, its combat effectiveness had faded.
Now they mostly appeared at formal events, parades, or ceremonial receptions.
Martijn was about to nod when an unfamiliar sound sliced through the air.
A whistling noise.
Not artillery.
Not aircraft engines.
Something was falling… fast… from above.
Jan-Pieter, Martijn, and the deck crew looked up simultaneously.
Their faces froze.
"Bombing!!!" Jan-Pieter screamed in panic.
There was no time.
BAM!
BAM!
Two torpedoes pierced the deck of HNLMS Java as if the steel were paper.
Then—
BOOOOOOM!
BOOOOOOM!
A massive explosion tore through the ship from within. Fire erupted through the deck breaches. Shockwaves ripped the air apart. A gun turret lifted, then collapsed.
The ammunition magazine detonated.
Jan-Pieter and Martijn were hurled apart, obliterated before their bodies hit the deck. In a single second, the highest command of the KNIL fleet in the Dutch East Indies ceased to exist.
The giant ship was split by fire and smoke. The explosion shook all of Tanjung Perak. Both KNIL troops and independence fighters turned toward the same sight.
The sky filled with black smoke.
Before anyone could fully comprehend what had happened—
BOOOOM!
BOOOOM!
Two more explosions struck the KNIL fortress at the harbor entrance. Concrete erupted. Steel twisted. Dutch marines and KNIL soldiers were engulfed by fire and shrapnel.
The fortress collapsed.
Surabaya's sea gate lay open.
---
On land, a broad-shouldered man wearing a red-and-white headband stood behind the ruins of a warehouse. He wore a green uniform resembling KNIL attire, except for the red-and-white armband on his right arm.
His name was Soerjadi—an independence fighter and former KNIL soldier from Madiun who had defected against his former Dutch masters.
He watched as HNLMS Java burned fiercely, the colonial pride now a massive torch in the Java Sea.
His eyes narrowed. His chest trembled.
He raised his hand, gripping a Steyr M1912 pistol.
"ATTAAAAACK!!!"
The cry was answered by hundreds of voices. Independence fighters surged from hiding. Rifles were raised. Grenades were thrown. Artillery fire intensified. The assault began.
That day, the KNIL fleet in Surabaya was destroyed. That day, the seas were no longer ruled by the Dutch. And that day, the world realized—
That colonial power could fall to courage, ingenuity, and unyielding determination.