Before the first shot is fired, the battle is already decided.

This is a side story. Since including all characters is impossible, I've picked a few.

A world where military technology has advanced rapidly due to the Industrial Revolution.
The continent is currently maintained in a balance of power by five great empires. However, tensions have reached a breaking point over a newly discovered underground energy source, "Astra Ore."
A peace treaty exists on the surface, but beneath it, espionage, assassination, and sabotage are ceaseless.

Granz Empire
・National Principle
"Discipline is the pillar that supports the nation."
For soldiers, orders are absolute, but superior officers are expected to understand the "intent behind the order" and act accordingly. Soldiers are a profession respected by the people.
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Albion Kingdom
・National Principle
"Only those with honor are qualified to wield a sword."
Places greater importance on "how one wins" than simply "winning."
Has a culture that "fears shame."
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Verde Republic
・National Principle
"Free thinking creates the future."
Prioritizes "field judgment" over orders.
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Rosen Empire
・National Principle
"The Emperor is the symbol of the nation."
Propriety is paramount.
An insult to the Emperor is an insult to the nation.
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Nordia Federation
・National Principle
"The motherland never abandons its soldiers."