The M142 is a mobile artillery system known as the High Mobility Artillery Rocket System (HIMARS). It is designed to provide rapid and precise fire support for ground forces. The system can launch various types of rockets and missiles, including guided munitions, making it versatile for different combat scenarios. HIMARS is mounted on a wheeled chassis, allowing for quick deployment and mobility on the battlefield. It is operated by the U.S. Army and has been used in various military operations since its introduction in the early 2000s. The system enhances the firepower of ground troops while maintaining a low logistical footprint.