HMAS Hobart was a Perth-class guided missile destroyer of the Royal Australian Navy (RAN). Built in the United States of America to a slight variant of the United States Navy (USN) Charles F. Adams class, she was commissioned into the RAN in 1965. In March 1967, Hobart became the first RAN combat ship deployed to fight in the Vietnam War. This marked the start of consistent six-month deployments to the warzone, which continued until late 1971; Hobart was redeployed in 1969 and 1970. During the 1968 tour, the destroyer was attacked by a United States Air Force aircraft.

The Defoe Shipbuilding Company was a small ship builder established in 1905 in Bay City, Michigan, United States. It ceased to operate in 1976 after failing to renew its contracts with the United States Navy. The site of the former company is now being developed for business and housing on the bank of the Saginaw River.