Assault Craft Unit 1

Military unit

Assault Craft Unit ONE, (ACU-1) is a Pacific Ocean Maritime Prepositioning Force in the United States Navy operated under Naval Beach Group ONE out of Naval Amphibious Base (NAB) Coronado with a Forward Detachment in Sasebo, Japan. ACU-1's force consists of Landing Craft Utility (LCU) boats, Landing Craft Mechanized (LCM), Mark 8 boats, and Maritime Prepositioning Force Utility Boats (MPFUBs). The sister unit of ACU-1 is Assault Craft Unit 2 in Naval Amphibious Base Little Creek, Virginia.

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