High Quality Content by WIKIPEDIA articles! USS Canberra (CA-70/CAG-2) was a Baltimore class cruiser and later a Boston class guided missile cruiser of the United States Navy. Originally to be named USS Pittsburgh, the ship was renamed Canberra before launch, for the Royal Australian Navy`s County class cruiser, HMAS Canberra, which was sunk during the Battle of Savo Island. USS Canberra is the only USN warship named for a foreign warship or a foreign capital city.