The one that is the msot effective to include is <span>US victory in the Spanish-American War in 1898.
</span><span>US victory in the Spanish-American War in 1898 basically help the majority of South American region to obtain their independence in the spanish.
This result of this war opened up a mutually beneficial relationship between us and southern american nations in term of trades, resources exchange, millitary alliance, etc.</span>
In addition to the fur trade ,Samuel de Champlain's Quebec colony was helped by <em>firearms and gunpowder and spreading of faith.</em>
Champlain the visionary would change history.He dreamed not only of adding a great domain of France but of bringing wealth through the fur & firearms trade, of spreading the faith and of penetrating the mysteries of the great and baffling continent.He persuaded the Sieur de Monts to write off his Acadian ventures and fired him with a new energy for an expedition to Quebec.Samuel de Champlain invented/found Canada during his exploration/voyage.
This would be B, Exclusice Jurisdiction. :)