What chain of islands is southeast of the virgin islands?

Chain of islands southeast of the Virgin Islands is Bermuda. It's huge Royal Naval Dockyard complex joins present day attractions like the intuitive Dolphin Quest with oceanic history at the National Museum of Bermuda. The island has a particular mix of British and American culture, which can be found in the capital, Hamilton.

Which one is the underlined word?

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years