I started with a portal, then turned around and handed it over to the nation.

The old man's voice was steady and strong, and his outstretched palm was dry and warm.

Lin Mo subconsciously reached out and shook his hand.

Zhao Zhenguo released his grip, turned around, and strode forward along the circular viewing platform.

"Come on, Kobayashi, I'll show you around."

His voice was loud and clear, echoing in the empty passageway.

Long Fei nodded slightly to Lin Mo and followed half a step behind Zhao Zhenguo. Lin Mo composed himself and immediately followed.

"Every soldier here is an elite selected from the entire army."

Zhao Zhenguo pointed to a patrol team that was changing shifts in the passage below.

They were dressed in full tactical gear, armed to the teeth, and marched in perfect unison, each step echoing with a dull thud.

"They patrol around the clock, and nothing escapes their notice. Here, your safety is at the highest level."

Lin Mo looked in the direction he pointed, and saw that the soldiers had sharp eyes and were warily scanning everything around them.

He then looked at a huge training ground in the distance, where dozens of special forces soldiers were performing tactical maneuvers, rolling, shooting, and advancing. Their movements were crisp and clean, silent yet exuding a deadly power.

Ever since he was bound to the system, he had been living in constant fear, and only now could he finally feel at ease.

His Adam's apple bobbed, and his voice was somewhat hoarse.

"General, I... I can finally get a good night's sleep."

Zhao Zhenguo sensed the weariness and relief in his voice. He didn't stop walking, but simply raised his hand and patted Lin Mo's shoulder heavily.

"Reassurance is only the first step. Next, we need to give you confidence."

The old man stopped and turned to face him.

"Come on, let's go to the meeting room. Your new colleagues are all waiting for you."

Zhao Zhenguo led Lin Mo to a heavy alloy door behind the viewing platform.

There were no extra signs on the door, only one line of text engraved in the center: "Pangu Operation Command Center".

Long Fei stepped forward and verified his iris and fingerprint on the scanner by the door.

"Authentication successful."

A mechanical electronic sound rang out, and the heavy alloy door slid silently to both sides with a low, rumbling hum.

The conference room behind the door was already full of people.

As soon as the door opened, more than a dozen pairs of eyes turned to them.

In the center of the room was a huge circular conference table, and on the wall directly opposite the door was a giant screen wall that connected to the command center outside.

Zhao Zhenguo strode in and went straight to the head seat.

"Everyone, this is the core of our Tianmen Project, Comrade Lin Mo."

His voice broke the silence in the room.

Lin Mo followed behind him, feeling his palms start to sweat again.

"This is Long Fei, the action team leader. You should know him." Zhao Zhenguo pointed to Long Fei.

Then he pointed to an old man with messy hair, wearing thick-rimmed glasses, who was staring at Lin Mo with the look of someone looking at a rare animal.

"Chief Expert, Professor Sun Dehai."

Professor Sun Dehai grinned at Lin Mo, revealing a set of yellow teeth, his eyes flashing with a light that made Lin Mo feel a little uneasy.

"This is Wu Qian, the head of the tactical analysis team."

A middle-aged man wearing gold-rimmed glasses, who looked quite refined, nodded to Lin Mo.

"Data Analysis Team Leader, Wang Hao."

A young man who looked to be in his late twenties, wearing a plaid shirt, adjusted his black-rimmed glasses and smiled shyly.

……

Zhao Zhenguo introduced the dozen or so core members sitting around the table one by one; they were all top experts in their respective fields.

After the introduction, Zhao Zhenguo sat down in the main seat, placing his hands folded on the table, and the atmosphere in the entire conference room instantly became solemn.

He looked at Lin Mo, his gaze softening.

"Kobayashi, don't be nervous. Sit down."

Lin Mo sat down in the empty seat reserved next to Long Fei, sitting up straight.

"Now, we need you to confirm it one more time."

Zhao Zhenguo leaned forward slightly, staring into Lin Mo's eyes: "The precise dimensions of the portal."

Lin Mo took a deep breath, trying hard to recall the door that had changed his fate.

"It's tall, about two meters, no more than two and a half meters. As for the width... at most one meter. It's very narrow, only wide enough for one person to pass through. A slightly overweight person... might have to turn sideways."

As soon as he finished speaking, a collective gasp filled the conference room.

Wu Qian, the head of the tactical analysis team, immediately stood up, walked quickly to the electronic whiteboard next to him, and swiped his finger across it rapidly.

He drew a narrow door frame, labeled "2m x 1m" next to it.

Everyone frowned deeply, staring intently at the disproportionate door frame.

"A door that's only one meter wide..."

Wu Qian turned around, his expression stern.

"This means that no heavy firepower or large equipment can pass through."

"We can only rely on individual combat, and we must enter in single file."

"On the battlefield, this is the most dangerous and passive formation. If there is an ambush at the entrance, the first member will be eliminated instantly before he can even react, and the passage behind will also be blocked."

Long Fei had been silent until now, when he spoke in a deep voice.

"I suggest that the robotic dogs, carrying the detection equipment, should be the first team to enter."

He paused, then added.

"But the signal is a problem. Whether the physical rules of this other world are the same as ours, whether radio signals can be transmitted effectively, and how far they can be transmitted are all unknowns."

Long Fei's words made the atmosphere in the conference room heavy once again.

Just then, Wang Hao, the data team leader, a young man who looked somewhat like a homebody, adjusted his glasses and raised his hand.

Zhao Zhenguo looked at him: "Wang Hao, speak up if you have any ideas."

Wang Hao stood up and faced a room full of big shots. He was a little nervous, but his eyes lit up when the topic turned to his professional field.

"General, esteemed experts, I recommend adopting a wired solution!"

He strode to the whiteboard and took the pen from Wu Qian.

"Since wireless is unreliable, let's use the most primitive yet most reliable method! Let the first robotic dog drag in a specially made high-strength fiber optic cable!"

He drew a line on one side of the door frame, extending it behind the door.

"Once the robotic dog enters, it immediately performs a 360-degree scan of a ten-meter radius around the entrance and transmits the data back via fiber optic cable in seconds. Once the entrance is confirmed to be secure, our team can proceed immediately!"

"The first priority after the team enters is to immediately set up a miniature signal base station inside the entrance!"

"Once the base station is established, all troops and equipment entering the area can be switched to encrypted wireless mode! This will ensure that team members can switch to the intra-dimensional network after entering the area."