Abstract: A soldier carries a weapon on which a laser device (1) is mounted, which is used for illuminating a harness device (6) on the body of another soldier. This harness device is provided with sensors (61, 62, 63, . . . ), which perform detection tasks for several applications in connection with arbitrary simulation scenarios in the course of exercises and battles. The laser device (1) has a laser target illumination element which is designed for transmitting tightly bundled laser beams (11), as well as chopper means for transmitting laser beams which are not only coded, but also chopped at a predeterminable frequency. The sensors contain tuning means for obtaining an alternating electrical signal from the received chopped laser beams, which is supplied to a pre-amplifier connected upstream of a discriminator. A very sensitive laser identification system results due to the fact that the electrical signal obtained in this manner can be very strongly amplified.