The 1K17 Szhatie (Russian: 1К17 Сжатие — "Compression") is a self-propelled laser vehicle of Soviet origin. The platform uses a Msta-S chassis with a battery of laser projectors mounted in the turret. It was developed by the Soviet Union in order to disable the optical-electronic equipment of enemy missiles, ground and aerial vehicles. The "tank" used an intense laser beam to disable the optical-electronic equipment of the enemy vehicles.