Tillerman, on his blog Proper Course does and excellent job of recounting the history of both of these battles at his post here: http://propercourse.blogspot.com/2010/10/happy-saint-crispins-day.html.
He also points out that we missed celebrating the big one, the Battle of Trafalger on 21 October 1805, Remember "England expects that every man will do his duty." Why do we get stuck with "hope and change" and "mission accomplished" and the Brits get Horatio Nelson, 1st Viscount Nelson, First Duke of Bronte and Sir Winston Leonard Spencer-Churchill - to wit:
(...) The British Empire and the French Republic, linked together in their cause and in their need, will defend to the death their native soil, aiding each other like good comrades to the utmost of their strength.
we shall fight on the seas and oceans,
we shall fight with growing confidence and growing strength in the air, we shall defend our Island, whatever the cost may be,
we shall fight on the beaches,
we shall fight on the landing grounds,
we shall fight in the fields and in the streets,
we shall fight in the hills;
we shall never surrender, and even if, which I do not for a moment believe, this Island or a large part of it were subjugated and starving, then our Empire beyond the seas, armed and guarded by the British Fleet, would carry on the struggle, until, in God's good time, the New World, with all its power and might, steps forth to the rescue and the liberation of the old."