Do they understand the order?
Do they assume defeat?
Does one formation make space for another or simply leave the field?
Some of the French army began losing cohesion.
This was not yet complete collapse.
King John remained.
Major troops remained.
But the French numerical advantage was beginning to dissolve into separate decisions.
That was far more dangerous than casualties alone.
Armies are defeated when enough men stop acting as one army.
Poitiers was approaching that point.
The Duke of Orléans' Division Did Not Deliver the Crushing Blow the French Needed
The next major French body did not simply replace the Dauphin's troops with fresh, perfectly coordinated pressure.
Elements withdrew or failed to engage effectively.
The reasons have been debated.
Confusion may have played a large role.
The withdrawal of men ahead could look like evidence that the battle was lost.
Orders may have been unclear.
Some troops may have been escorting royal princes away from danger.
Whatever the exact mechanism, Edward suddenly received something no outnumbered commander expects to receive during battle.
Space.
The French army still had enormous strength.
But not all of it was advancing.
The English had time to breathe.
More importantly, Edward could now see that the French army's divisions were no longer supporting one another perfectly.
That observation changed the meaning of his reserve.
A reserve used defensively plugs a hole.
A reserve used offensively can turn disorder into collapse.
Edward began moving toward the second option.
King John II Refused to Leave
John's behavior in the final phase is one of the reasons his personal reputation survived the military disaster better than it might have.
He did not simply abandon the field.
He remained with his division.
His youngest son Philip stayed beside him.
Later tradition celebrated Philip as Philip the Bold because of his conduct near his father.
The king's choice was courageous.
It was also dangerous.
A medieval king on the battlefield was not merely another fighter.
He was the political center of his kingdom.
If captured, the consequences could be enormous.
John nevertheless advanced.
Perhaps he believed the English were exhausted enough to break.
Perhaps withdrawal seemed dishonorable after committing the kingdom to battle.
Perhaps he hoped his final division could restore the situation.
He had reasons.
And for a time, the final French assault remained extremely dangerous.
Edward had not won yet.
The Prince Now Faced the Most Important Decision of the Day
Continue holding the defensive position.
Or counterattack.
Defending had worked.
The French had lost cohesion.
Why leave the ground that had protected him?
Because the situation would not remain frozen.
King John's troops were coming.
If they reached the English line while still organized, the battle could return to a contest of attrition.
Edward's smaller army could not guarantee survival indefinitely.
The best moment to attack a larger army is often not when it is weakest physically.
It is when it is weakest organizationally.
French divisions had become separated.
Some troops were leaving the battlefield.
Others were advancing.
The king's final force therefore risked fighting without the full support the French numbers promised.
Edward recognized the window.
He ordered offensive action.
The Counterattack Was Not One Simple Charge
Later storytelling often compresses battles into one dramatic command.
Edward raises his sword.
The English rush forward.
The French collapse.
Reality was more layered.
One crucial element involved mounted troops maneuvering around the French flank or rear.
The Gascon noble Jean de Grailly, Captal de Buch, is strongly associated with this movement in accounts of the battle.
A mobile mounted force could exploit terrain differently from the main dismounted line.
If it reached the French flank or rear, the psychological effect could exceed its numbers.
Men already engaged from the front suddenly see hostile cavalry where they expected safety.
Rumors spread faster than orders.
"They are behind us."
"We are surrounded."
"The retreat is cut."
A formation can still possess thousands of fighters and collapse because enough men believe escape is disappearing.
Edward coordinated frontal pressure with movement against the French flank.
This transformed the battle.
The English and Gascon Men-at-Arms Advanced
Men who had spent hours receiving attacks now moved toward the enemy.
Psychologically, that reversal matters.
The French expected to crush a cornered army.
Instead the cornered army was attacking.
The English archers also adapted.
Archers who had exhausted many arrows were not useless.
Some joined closer fighting.
Others continued firing where ammunition remained.
They could move along the battlefield and attack horses or exposed opponents from different angles.
The entire English-Gascon army became more active.
This is when the advantage of interior cohesion became decisive.
Edward's force was smaller but still responding to a central command.
The French force was larger but fragmented.
Numbers do not disappear.
Their effect does.
The French King's Division Became Compressed
John's men fought fiercely.
The king's banner remained a rallying point.
French nobles gathered around him.
This concentration provided courage.
It also created a target.
English and Gascon troops understood what stood in front of them.
The king of France.
Capturing him would be worth more than killing hundreds of ordinary soldiers.
Medieval warfare among nobles contained a strong ransom culture.
A captured aristocrat could be enormously valuable.
A king represented wealth beyond ordinary calculation.
That economic incentive influenced battlefield behavior.
Men tried to capture high-ranking opponents alive when practical.
At Poitiers, this culture helped shape the final struggle around John.
The Battle Became Personal Around the King
The French formation contracted.
Some troops fled.
Others continued fighting around the royal banner.
Philip remained beside his father.
Later stories describe him calling warnings as enemies approached from different directions.
The exact words cannot be confirmed.
The image endured because it captured the intimacy of the final scene.
A king who began the day surrounded by a larger army now fought inside a shrinking circle.
His son's presence emphasized how far the battle had reversed.
The English prince had begun trapped.
Now the French king was.
That transformation happened not because the French army vanished physically but because cohesion vanished faster than manpower.