group of people, some in military-style uniforms and some in civilian clothing, participating in what appears to be a dance or choreographed movement in a gymnasium

group of people, some in military-style uniforms and some in civilian clothing, participating in what appears to be a dance or choreographed movement in a gymnasium. The gymnasium has a wooden floor, basketball hoops, and large windows. The participants are lined up in rows and appear to be following a set of instructions or a routine. They extend their arms and step rhythmically, suggesting synchronized movement. The overall atmosphere seems disciplined yet engaging, possibly part of a school activity or performance.