The port city of Medan breathed a thick, soupy air, a humid mixture of brine, frangipani, and a new, almost electric scent of fear. In the two weeks since the Governor-General in Batavia had received the cryptic telegram from The Hague, a quiet, brutal transformation had taken place. To the casual observer, nothing had changed. The markets still bustled, the steam trams still rattled along their tracks, and the Dutch colonial administrators still took their afternoon gin and tonics on the verandas of their grand, whitewashed villas. But beneath this placid surface, the gears of a secret war were grinding into motion.
Governor-General Van Heutsz, a man whose grim efficiency had been forged in decades of colonial warfare, had acted with the speed and ferocity of a mongoose striking at a snake. Armed with the intelligence provided by the mysterious British spymaster Abernathy—a list of names, suspected meeting places, and operational methods—the Dutch secret police had moved with terrifying precision. Key figures in the burgeoning rebellion, men who believed their identities were known only to their comrades and their unseen benefactors, had simply vanished from their homes in the dead of night.
But they had not gotten them all. In a smoky back room of a dockside warehouse, Yusuf, Prince Diponegoro's most charismatic and capable commander in northern Sumatra, gathered his men for their final briefing. He was a man ablaze with patriotic fire, his heart filled with visions of a free Aceh. He looked out at the faces of his lieutenants, men armed not with rusty, ancient blades, but with brand-new, magnificent German-made Mauser rifles, their metal parts still slick with cosmoline. The weapons had appeared as if by magic, delivered by their mysterious and powerful patrons, the 'Prosperous Seas Merchant Consortium.'
"Tonight," Yusuf declared, his voice a low, passionate rumble, "we reclaim our city! Our patrons have assured us the Dutch are weak, complacent, sleeping in their beds. We will strike at the heart. My unit will take the main barracks at first light. Hamid," he pointed to another man, "your men will seize the Governor's mansion. The signal will be the mansion's flagpole, when our flag replaces the Dutch tricolor. It will spark a city-wide uprising. The people will join us. By sunrise, Medan will be ours!"
His men let out a low, guttural cheer. They were confident, bordering on arrogant. Their spies had reported no unusual activity at the Dutch barracks. They were walking into a sleeping giant's lair, and they held the daggers to slit its throat.
Hours later, in the pre-dawn gloom, Yusuf led his hundred best men through the silent, sleeping streets. The air was cool, a welcome respite from the day's oppressive heat. They moved like ghosts, their bare feet silent on the dusty roads, the new German rifles held at the ready. They reached the edge of the wide, open parade ground that fronted the main barracks. The building was dark, just as their intelligence had predicted. A lone sentry paced the gate. It was perfect.
"Ready," Yusuf whispered, his heart hammering with anticipation. "On my signal…"
He never finished the sentence. A single, blindingly bright searchlight ignited from the roof of the barracks, pinning his men in its merciless white glare. For a heartbeat, they were frozen, exposed like nocturnal animals caught in a hunter's lamp.
Then, hell erupted.
From sandbagged emplacements they hadn't known existed, from windows that should have been empty, the air was torn apart by the rhythmic, terrifying chatter of Maxim machine guns. The sound was like a giant ripping a sheet of canvas, a sound that shredded nerves as effectively as the bullets shredded flesh. The Dutch were not only awake; they had been waiting for them.
The new German rifles were magnificent weapons, but they were useless against fortified machine-gun nests. Yusuf's men were mown down in the open ground, their bodies jerking and collapsing in a horrifying ballet of death. The triumphant uprising had turned into a slaughter in less than ten seconds. Yusuf, hit in the leg, screamed in a mixture of pain and shocked betrayal as he dragged himself behind a meager cart for cover. This wasn't a battle. It was a perfectly laid ambush. How?
At that same moment, inside the Dutch command post on the second floor of the barracks, a Dutch Captain named De Vries watched the massacre through his binoculars, his face grim but satisfied. Beside him stood a quiet, unassuming man in civilian clothes who had been introduced to him two weeks prior as Mr. Smith, a "liaison officer" from the British consulate's commercial section.
"Optimal firing lanes, Captain," Smith murmured, his voice calm amidst the cacophony of the battle. "Just as we practiced. The key is to hold your fire until they are fully committed to the open ground. Creates a perfect killing zone."
The tactics were brutal, efficient, and straight from the British Army's newest field manual on colonial counter-insurgency. Over the past week, this quiet Englishman had overseen a complete, secret overhaul of Medan's defenses, his expertise far exceeding that of a mere commercial liaison.
De Vries lowered his binoculars. "Your intelligence was impeccable, Mr. Smith. They walked right into it." He then turned to another officer. "Report from the water purification unit?"
"All clear, Captain," the officer replied. "All water sources remain secured and under constant guard, just as the Governor-General ordered. The new British filtration systems are working perfectly. Our troops have never had cleaner drinking water."
The last, insidious part of the Chinese plan, the weapon the rebels didn't even know they were supposed to have, had been rendered inert and irrelevant before it could even be deployed.
The firefight lasted less than an hour. The Medan rebellion was not just defeated; it was annihilated. Yusuf, bleeding out behind the cart, saw the last of his men cut down before a Dutch patrol found him and ended his suffering with a single pistol shot to the head.
The news of the disaster, carried by a handful of terrified survivors who managed to slip through the Dutch cordon and melt into the jungle, spread like a virus among the other rebel cells across the island. Their great, coordinated uprising, the glorious war of liberation promised by their powerful patrons, had been shattered before it had even truly begun. Their benefactors had promised them a swift victory against a weak, sleeping enemy. Instead, they had been fed into a meat grinder that had been waiting for them with open jaws. Their faith, their confidence, their very will to fight, was broken.
In his palace in Batavia, Governor-General Van Heutsz read the after-action report from Medan, a thin smile touching his lips. He looked across his desk at the British liaison officer, who had just arrived by naval dispatch boat.
"Your intelligence was preternaturally accurate, Smith," Van Heutsz said, the grudging respect clear in his voice. "Your assistance has been… invaluable."
"Glad we could be of service," Smith replied blandly.
"Convey my gratitude to Mr. Abernathy," the Governor-General continued, his eyes turning hard as flint. "Tell him the Tulip is most grateful to the Lion for the warning." He stood and walked to a large map of Sumatra, his finger tracing the dense, dark green of the jungle interior. "Now, the hunt begins."
The secret war for Sumatra had begun not with a triumphant bang for the Qing Empire, but with the sharp, metallic snap of a British trap.