The M88 Recovery Vehicle is one of the largest armored recovery vehicles (ARV) in use by United States Armed Forces. There are three variants, the M88, the M88A1, and the M88A2 HERCULES (Heavy Equipment Recovery Combat Utility Lifting Extraction System). The M88 series has seen action in the Vietnam War, the Persian Gulf War, the Iraq War, and the War in Afghanistan, and to a lesser extent during the Kosovo War, where they were deployed to help recover heavy armored vehicles of the Allied ground units. As of 2000, the M88A2 replacement cost was around US$2,050,000.