My Captain does not answer, his lips are pale and still;

My father does not feel my arm, he has no pulse nor will;

The ship is anchor'd safe and sound, its voyage closed and done;

From fearful trip, the victor ship, comes in with object won;

Exult, O shores, and ring, O bells!

But I, with mournful tread,

Walk the deck my Captain lies,

Fallen cold and dead.

—"O Captain! My Captain!"
Walt Whitman

In this final stanza, what does the speaker mean with the phrase “its voyage closed and done”?

The ship will not be taking any more voyages
The army has won the war.
The army has stopped fighting in the war.
The ship is no longer accepting passengers.

c. as a force against soviet invasion of afghanistan

norsemen from northern countries had made earlier journeys

to it’s stable government, it has been able to accept refugees from somalia and south sudan. (apex)

since most of current immigration into the u.s., both legal and illegal, is coming from latin america. it would be very difficult to imagine or rationalize a country my fellow citizens are trying desperately to flee into, would pose a threat to my prosperity or freedom. since the u.s. has a long history of intervention, but no record of permanent occupation, i would not feel oppression is the main objective.  

the largest free trade nation, along with the largest gdp in the world wanting to expand it's economic policy on us, and including us, could only be positive. the u.s. government has no interest in, or way of simply forcing american culture on us. and has no track record of it. other nations that adopted american social culture, or "americanization" did so voluntarily, mainly through the choice of allowing american businesses and u.s. citizens to come into their nations, as free operatives.