What Exactly Was Kokutai? The Meiji Government's Invention for Uniting Japan Around the Emperor

I remember learning the phrase “preserving the kokutai” in history class.

Prewar Japan was extraordinarily obsessed with protecting the kokutai. Even when Japan was deciding whether to end the Pacific War, this was one of the issues that remained unresolved until the very end.

But what exactly was kokutai?

Textbooks describe it as “the structure of the state centered on the emperor.”

Many high school students probably read that, thought, “All right, then,” and moved on while still feeling that something did not quite make sense.

Why was placing the emperor at the center so important?

Recently, I watched a video that explained kokutai remarkably clearly.

So that was what it meant.

In fact, this system played a rather ingenious role in Japan’s transformation into a modern state during the Meiji era.

Samurai and Farmers All Became Subjects of the Emperor

Before the Meiji Restoration, Japanese society was divided into classes such as samurai, farmers, and townspeople.

But Japan could not afford to maintain that system while trying to compete with the Western powers.

The government needed to recruit soldiers from across the country, collect taxes, and expand education. It had to turn people who had belonged to separate feudal domains into citizens of a single nation.

The emperor played a major role in making that possible.

Whether samurai or farmer, everyone was an equal subject under the emperor.

This was the idea of “one sovereign, all the people.”

It allowed the government to dismantle the old class order while creating a new national order at the same time.

It was a remarkably convenient system.

In reality, the government also created a new privileged aristocracy, and class discrimination did not disappear overnight. Even so, the idea helped unite people as “Japanese,” beyond their former domains and social classes.

People who had served their feudal lords until yesterday would all serve the emperor from today.

Japan’s modernization was also a massive organizational restructuring.

Kokutai Was the State’s Operating System

In modern terms, kokutai was like the state’s operating system.

If political institutions and laws were applications, beneath them was a vision of the nation centered on the emperor.

That was why ideas that rejected the imperial system itself were not treated as mere criticism of the government.

They were regarded as dangerous ideas that threatened to overturn the foundation of the state.

This concept of kokutai was also behind the severe suppression of communist movements and others under the prewar Peace Preservation Law.

Complaining about government policy was one thing. Rejecting the basic structure of the state was another.

Of course, those in power also decided what counted as opposition to the kokutai.

At that point, the system became extremely convenient.

Even political opposition could be dismissed as “an ideology that threatens the very foundation of the nation.”

Sometimes a convenient system becomes far too convenient for those who control it.

What Japan Tried to Preserve Until the Very End of the War

When Japan accepted defeat in 1945, “preserving the kokutai” became a major issue.

For the country’s leaders at the time, preserving the imperial system was not simply a matter of protecting the position of one monarch.

It concerned the very legitimacy of the state.

That was why debate over what would happen to the kokutai continued even after the war had become hopeless.

After Japan’s defeat, the country’s system changed dramatically.

Sovereignty passed from the emperor to the people. The emperor became a symbol of the nation with no political power.

The old kokutai ended as a political system.

Even so, there is a sense of historical continuity in modern Japan, where the emperor remains a national symbol without holding political power.

However, prewar “loyalty to the emperor” and the postwar “symbolic emperor” are not the same system. That was a major change.

The System That United Japan Also Constrained It

What interests me is that an idea which helped unite the country during the Meiji era eventually made it difficult even to change the structure of the state.

At first, it was a system for bringing people together as Japanese beyond the boundaries of class and feudal domain.

But once it became absolute, questioning the system itself was no longer permitted.

Rules created to strengthen the state ultimately narrowed its options.

History is full of ironies like this.

Still, as someone who works in IT, I can understand the idea of the Meiji government building an operating system for the state.

The problem was that, at some point, updates to that operating system were forbidden.

And if you tried to uninstall it, you would be arrested for treason.

Those were some terrifying terms of service.