And the army was divided into three echelons:
The first echelon consisted of light cavalry, equipped with strong crossbows;
The second echelon was heavy cavalry, armored with heavy armor, wielding long swords and spears.
The third echelon was composed of archers and infantry.
This arrangement aimed to maintain the army's concealment as much as possible and adopt a strategy of marching at night and resting during the day, intending to launch a surprise attack on Yiwulu City.
But the Xiongnu were not completely unprepared.
The current situation was vastly different from the original historical context.
The news of consecutive years of bountiful harvests for the Great Han couldn't be concealed.
Not to mention the oath Liu Xiu made before the people after his ceremonial excursion.
Evidently, the Northern Xiongnu knew the Han Army would certainly take action.
