The central element of the seal and emblem, the Roman cuirass, is a symbol of strength and defense. The sword, esponton (a type of half-pike formerly used by subordinate officers), musket, bayonet, cannon, cannonballs, mortar, and mortar bombs are representative of Army implements.

The United States Army flag features much more intricate imagery than other branches of the armed forces. Symbols include the original War Office seal in ultramarine blue on a white background. Above the seal the Army motto, This We’ll Defend, is written on a scroll and protected by a snake.