I think the navy was instrumental in the Roman conquest of the Mediterranean basin. The navy was also a key in defending against barbarian invasions.
Answer;
-Their religious denomination
Explanation;
-The Huguenots were French Protestants. The tide of the Reformation reached France early in the sixteenth century and was part of the religious and political fomentation of the times. People from various parts of Europe chose to settle in the American colonies during the 17th century. Many Huguenots from France were among the settlers.
-The Huguenots were Calvinists. France was a Catholic nation, and the Huguenots faced much discrimination. Many left to settle in the United States, where they could practice their religion freely, and live among fellow protestants. A number of famous Americans are descended from the Huguenots, including Paul Revere.
Well first Spain sunk a battleship Maine in Havana harbor which caused the US to get involved and the US's role was to patrol coastal waters to prevent gun running.