group of people dressed in black uniforms and hats marching and standing in formation on a tiled outdoor plaza

group of people dressed in black uniforms and hats marching and standing in formation on a tiled outdoor plaza. The people in uniform appear to be young adults or teenagers. They are in a straight line facing forward. A young boy wearing a dark t-shirt and a red hat is seen in the foreground watching the formation. The plaza is surrounded by trees, and there is a building with flags in the background.