Analysis of The Last Conqueror

Victorious men of earth, no more
Proclaim how wide your empires are;
Though you bind-in every shore
And your triumphs reach as far
As night and day,
Yet you, proud monarchs, must obey
And mingle with forgotten ashes, when
Death calls ye to the crowd of common men.

Devouring Famine, Plague, and War,
Each able to undo mankind,
Death's servile emissaries are;
Nor to these alone confined,
He hath at will
More quaint and subtle ways to kill;
A smile or kiss, as he will use the art,
Shall have the cunning skill to break a heart.