In 1990 , in response to the Gulf War , ACU-1 was a first responder , acting to transport and unload cargo from Maritime Prepositioning Ships using LCM-8s . Since the September 11 attacks , ACU-1 has operated outside of a strictly military role , providing humanitarian services and disaster relief . Recently , ACU-1 has operated with other Amphibious Battalions providing Military logistics for the Key Resolve/Foal Eagle Military exercise in South Korea
September 11 attacks
September 11 attacks
Assault Craft Unit ONE