There are four individuals in the image. They appear to be military personnel based on their uniforms. The person on the left is wearing a dark uniform with a cap, while the person next to them is also dressed in a similar style but with a different cap. The third individual is wearing a light-colored uniform with a cap, and the fourth person is wearing a dark uniform with a cap as well. All of them are holding what appears to be a piece of equipment, possibly a medical tool or equipment for training purposes.