This is a soldier returning from the hunt, as it is time for him to join his regiment; which has received orders to march to another barracks.
Here is a soldier going to battle with his knapsack on his back, and his gun in his hand, he is going to meet his fellow soldiers.
This is a soldier who fights with a spear. In olden times, spears and arrows, were used in war; but now, guns, rifles, cannons and swords are used.
This is an officer of a company of soldiers, he has drawn his men up in a line, and is now telling them how they must act when they are in battle.
This man is a Herald; it is his duty to proclaim the commander’s orders to the soldiers throughout the camp. See, he has a trumpet.