Question 411 : The Ball's in The British Court.

Right ho!
I found this piece of verse, accompanying the description of an Anglo French Battle.
Shakespeare's a hint.
NOW, WHICH BATTLE IS BEING TALKED ABOUT?
You don't need to id the poet(no points for the poet), but do so if you're feeling generous.
"
'Twas in the year 1415,
That King Henry V and his team,
Crossed the channel and went to France,
To stand firm and defend their stance!
But victory was quite far from their sights,
As they were simply outnumbered by French Knights!

Even the most staunch of believers must think,
That it's time for the British army to sink!
But the Brits did have cause for celebration,
Since the knights were at a greater elevation.

Britain saw discipline as a good omen,
Although just a few hundred Yeomen.
The trumpets sounded,
The battle started!
When the Brits swore by George,
The knights began their charge!

The situation for Henry's men was dire,
With faint hope, the longbowmen fire.
As the French horse received its whip,
Due to wet ground, did it slip!
France, from the jaws of victory, snatched defeat,
Under any circumstances, a remarkable feat.
The Bows observed with glee,
As the remainder of the french army,
Began to flee!

For Britain, a time to revel,
The result, quite a marvel!
With the muddy hill playing spoil sport,
There ended the Battle of ______________
                                                                        "