Does the united states have a mission to expand freedom and democracy?

What was the purpose of the u.s navy's convoy system

Although male citizens have tp enroll in the selective service,the draft has not been used since 1973

Which event resulted from a missed meeting between british generals howe and burgoyne? a.the british victory at princeton b.the surrender of general howe c.the surrender of lord cornwallis d.the continental army’s victory at saratoga