What Exactly Is a "Shogun"?

I wrote about Japanese castles the other day, so today let’s talk about Japanese history.

Foreigners often ask me:

“Why does Japan have both an Emperor and a Shogun?”

Honestly, many Japanese people can’t really explain this either.

But intuitively, I think it comes down to this:

“The top” and “the actual power holder” should be different.

This sense has been deeply rooted in Japan for a very long time.

The Emperor: Symbol of Legitimacy More Than Power

The Japanese Emperor, in feel, is closer to the Roman Pope than to a European king.

The roles are completely different, of course, but the Emperor has long been treated as:

“A figure who stays distant from worldly power struggles.”

Rather than directly running politics, the Emperor exists to show:

“Who is the legitimate center of this country.”

That’s why, even when samurai held power, they rarely tried to become Emperor themselves.

Instead, what they wanted was:

“To be appointed by the Emperor.”

And that appointment was the Shogun.

Shogun = Leader of the Military Government

The full title of “Shogun” is “Sei-i Tai Shogun” — literally “Barbarian-Subduing Great General.”

Originally, it was a military commander position. In the Western sense, the closest word is simply “General” — someone leading troops in the field.

But once the age of the samurai began, this military “General” gradually transformed into something else:

“The head of the warrior-class government.”

That political role is what we usually mean today by “Shogun.” The same two kanji (将軍), but a very different job: not just a General, but the de facto ruler of the country.

So you get this division of roles:

The Most Confusing Era: The Kamakura Period (1185–1333)

In the Kamakura period, the structure becomes wonderfully complicated:

That’s a multi-layered structure.

In other words, “the nominal top” and “the person actually making decisions” keep drifting apart.

A strange setup. But this kind of thing happens often in Japan.

One reason: the samurai of that time were originally just local armed forces — Generals in a literal sense, but not nobility.

They had power, but they lacked the bloodline or authority needed to declare:

“We are the legitimate rulers of this country.”

So they used the Emperor’s authority while quietly seizing actual control. The General borrowed legitimacy from above, and became the Shogun.

Legitimacy Isn’t Made by Power Alone

I think a bit of this still lingers in modern times.

For example, in companies:

The nominal top and the real power holder are often different.

Japanese people, surprisingly, place great value on:

“Outward order.”

So instead of:

“Seizing the top seat,”

the more common pattern is:

“Letting someone else be the top, while holding the real power.”

The Shogun — born as a General, transformed into a ruler — may be the most extreme expression of this very Japanese instinct.

”The Mikoshi Should Be Light”

There’s a piece of Japanese slang that captures all of this almost too bluntly:

“Mikoshi wa karui hou ga ii.”

“The mikoshi should be light.”

A mikoshi is the portable shrine carried on people’s shoulders at festivals. The saying means: the figure on top is best when they’re lightweight — ideally a bit hollow, even a little incompetent.

Why? Because if the top is too capable or too willful, they start moving on their own. Hard to carry.

A lightweight top is easier to handle. Easier to control.

Emperor and Shogun. Shogun and Regent. Regent and the head of the Hōjō clan.

The essence of Japanese power structure may be captured in this one short phrase.