In Henry V, what figures of speech do we have in the Prologue of Act III??

Well, there are plenty to choose from in this speech where
the Chorus calls upon the audience to suspend their disbelief once again and use their
imagination to call up the sights of the ships leaving England full of soldiers and
travelling to France to begin Henry's military
campaign.

Consider the following description of the seige
at Harfleur:

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Work, work your thoughts, and therein see a
siege:

Behold the ordnance on their
carriages,

With fatal mouths gaping on girded
Harfleur.

Consider how the
"ordnance" on the "carriages" are compared to "fatal mouths" that turn towards Harfleur
as the English army starts its siege of this French city. The description of these
mouths that "gape" at Harfleur certainly help to exaggerate the might of Henry's army
and its power.

Also, consider how the Chorus describes
Henry's fleet:

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O, do but think

You
stand upon the ravage and behold

A city on the inconstant
billows dancing;

For so appears this fleet
majestical...

Note how the
vast numbers of this fleet, and therefore the military might of England, is exaggerated
by its comparison to a "city on the inconstant billows dancing." The Chorus is keen to
present the fleet as being powerful, mighty and numerous, and the figurative language
that is used in this speech certainly helps to exaggerate the military might of Henry
and the forces that he has under his control.

I hope that
these two examples help you. Now go back and re-read this speech and see if you can
identify any more examples of figurative langauge. Good luck!