Hampton Roads
Beginning in 1917, as the United States became involved in World War I under President Woodrow Wilson, formerly rural Sewell's Point became the site of what grew to become the largest Naval Base in the world which was established by the United States Navy and is now known as the Naval Station Norfolk.
RAAF Base Rathmines
Rathmines RAAF Base is significant as a flying boat base used for the defence of Australia in World War II. During WWII, it was a major boat base in NSW, and was the largest boat base in Australia. It is understood to be the only flying boat base in NSW with a significant amount of physical fabric remaining.