The meeting adjourned a little after nine in the morning.
When we stepped outside, the early summer sun bathed the pavement in front of the Prime Minister’s Office.
The scenery hadn’t changed since a few hours earlier.
And yet, the world somehow felt completely different.
“Good work today.”
Azuma fell into step beside me.
Even his voice carried a trace of exhaustion.
“So… in the end, nothing happened.”
I shook my head.
“No.”
He looked at me.
“One war disappeared.”
Azuma gave a tired smile.
“Try telling that to the public.”
“The news will just say it was the result of successful diplomacy.”
I couldn’t argue with him.
He was right.
A few hours later, every major news network carried the same breaking report.
Neighboring Nation Begins Gradual Drawdown of Military Exercise
Government Confirms Ongoing Diplomatic Communication
Regional Tensions Continue to Ease
The country returned to normal almost immediately.
Office workers laughed as they stepped out to buy lunch.
Children ran through parks.
Trains arrived exactly on schedule.
Students filled cafés, buried in textbooks.
No one knew.
Only hours earlier, the nation had stood at the threshold of war.
And no one knew who had quietly closed that door.
⸻
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Several days later, the neighboring fleet returned to port exactly as scheduled.
Japan also began easing its heightened alert status.
The financial markets rebounded sharply with renewed confidence, pushing stock prices to new yearly highs.
The yen stabilized.
Supply chains resumed normal operation.
On a television news program, an economic analyst smiled confidently.
“We’ve managed to avoid the worst-case scenario.”
“Businesses can invest with confidence again.”
“This should provide a major boost to Japan’s economy.”
He wasn’t wrong.
Everything he said was true.
But only a handful of people knew why the worst-case scenario had been avoided.
⸻
Before leaving the Prime Minister’s Office that day, I returned to the room where AEGIS rested.
The lights had been dimmed.
Only the black terminal remained, silent and motionless.
It was hard to believe that only hours earlier, this single machine had determined the future of an entire nation.
I looked at it quietly.
“…Maybe I should thank you.”
There was, of course, no reply.
AEGIS had never existed to receive gratitude.
Praise meant nothing.
Blame meant nothing.
Its purpose was only to present the optimal solution.
That was what a machine did.
That was the shield protecting this country.
⸻
Two years passed.
The world map looked exactly the same.
Borders hadn’t moved.
No nation had gained territory through war.
But while the map remained unchanged, the world itself moved forward at astonishing speed.
Countries redirected portions of their military budgets into space exploration, launching ambitious lunar base projects.
Commercial fusion power arrived three years ahead of schedule, driving global energy prices down.
Breakthrough medicines for cancer and other previously incurable diseases entered clinical use one after another.
Average life expectancy reached a new record in only two years.
The money that would once have been consumed by war…
The scientists who would once have died on battlefields…
The years that would once have been lost…
All of them were invested in the future instead.
Human civilization advanced faster than at any other point in history.
A news anchor closed the evening broadcast with a smile.
“The global economy has now grown for nine consecutive years.”
“Nations around the world have announced record investments in research and development.”
“Experts are calling this the most peaceful and prosperous era in human history.”
I switched off the television.
Silence filled the room.
Outside the window, commuters walked home beneath the evening sky while children’s laughter drifted on the breeze.
Everyone was living an ordinary day.
And that ordinary life was being protected.
My thoughts returned to the meeting room.
To the single conclusion AEGIS had delivered.
At this time, the use of military force is not recommended.
That was the moment war had been avoided.
No…
That wasn’t quite right.
Humanity hadn’t abandoned war.
AI had simply removed war itself from the list of rational choices.
⸻
Years continued to pass.
Whenever another international crisis emerged, national strategic AIs around the world reportedly reached the same conclusion.
There was greater benefit in not firing.
A richer future in not destroying.
Eventually, no nation argued with that answer anymore.
Outside my window, the cranes of a newly constructed research complex stretched slowly into the crimson evening sky.
New technologies would be born there.
Perhaps a cure for another deadly disease.
Perhaps crops that could end famine.
Perhaps the spacecraft that would carry humanity to Mars.
The world never stopped moving.
Its future was no longer stolen by conflict.
It simply kept walking toward tomorrow.
And yet…
Sometimes I still wondered.
Was this peace something humanity had truly earned?
Or were we merely living beneath the protection of a shield no one could ever break?
Even now…
I don’t know the answer.
But one thing alone is certain—
Today, as always…
the world continues to move unwaveringly toward the future.