USS Harpers Ferry (LSD-49) is the lead ship of her class of landing ship dock of the United States Navy. This warship was named for the town of Harpers Ferry, West Virginia, which, because of the Federal arsenal there, was an important location during the Civil War. , Harpers Ferry is commanded by Commander Stephen Ilteris. USS Harpers Ferry is assigned to the Navy's "Amphibious Group 1". The homeport of the Harpers Ferry is at San Diego, California. Harpers Ferry was previously stationed at the American Naval Base in Sasebo, Nagasaki, Japan before she was relieved in 2011 by USS Germantown. This base is available to the U.S. Navy because of the Mutual Defense Treaty between Japan and the United States.