The Prologue, or the Chorus, informs the audience of the length of time which has passed since Henry's decision to invade France and the present, actual time. All of the preparations for war have been made, and enough time has elapsed for the French to learn of the plans for war and, as a counter measure, to enter into a conspiracy to have Henry assassinated.
The Chorus also reminds the audience that they must continue to use their imaginations as the scene will soon shift from London to Southampton and then to France.
