fenced athletic field with a group of people engaged in what appears to be training exercises

fenced athletic field with a group of people engaged in what appears to be training exercises. Several individuals wearing red vests are visible on the field along with others. They are spaced out and actively throwing white objects. The field is green, possibly artificial turf, and is bordered by a red wall behind the fence. In the background there is a line of bare trees against a cloudy, pale blue sky. Snow is visible in the foreground on the opposite side of the fence.