Seize pressure and timing.
The army marks a route as operationally necessary; other organs decide how that necessity becomes supply, permission, identity, protocol, and public truth.
Field Armies carry corps maneuver, theater timing, route control, campaign pressure, and invasion logic. Their violence is amplified by systems that arrive before and after them.
The opposition answers yesterday while the Empire moves tomorrow.
The army marks a route as operationally necessary; other organs decide how that necessity becomes supply, permission, identity, protocol, and public truth.