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.
Port Mahon Dockyard
The Port Mahon Dockyard was established at Port Mahon one of the world's deepest natural harbours in 1708 following orders issued by the Admiralty to Admiral Sir George Byng the Commander-in-Chief of the Mediterranean Squadron that he was instructed to develop the Port of Mahon as a naval base following the capture of Minorca. The dockyard was located on the north side of the harbour, opposite Port Mahon town. In 1756 control of the dockyard was fought over during the  Battle of Minorca (1756). During the 1760s naval storehouses were constructed. The dockyard was the Royal Navy's principal Mediterranean base for much of the eighteenth century; however the territory changed hands more than once in that time, before being finally ceded to Spain in 1802.