formation of soldiers marching on a paved surface, likely a parade ground

formation of soldiers marching on a paved surface, likely a parade ground. The soldiers are dressed in matching olive green uniforms with red belts, white gloves, and brown straw hats. They are carrying rifles with bayonets attached. The soldiers are moving in unison, executing a marching drill. In the background, there's a large building under construction and tents set up. A marching band can be seen in the distance as well. The sky is overcast.