The Empire has always been a master player in the human wave tactics.
However, there is a fundamental difference between human wave tactics and cannon fodder tactics.
The Empire's military philosophy is very clear, with their massive army also needing to be ferociously powerful.
Simply put, the Empire's army is not only numerous but also formidable. It is stronger in combat than the enemy and larger in scale.
With billions of troops, all absolutely loyal elites, they can confront various formidable forces from all sides while firmly maintaining an immense territory and the Empire's absolute dominance.
And what is needed to build such military strength?
Obviously, besides elite soldiers and fine-level equipment, the most important is strategic treasures, specifically a large number of them.
Therefore, the trade content of the Holy Knight is very targeted: a thousand sets of fine-level equipment in exchange for one strategic treasure.