That distinction matters.
Calling the entire force merely "English" simplifies a coalition that depended heavily on regional allies.
For many Gascon nobles, the war involved their own political interests as much as the ambitions of the English crown.
Edward needed those men.
They knew the country.
They provided troops.
They had local networks.
They also expected their prince to protect the army he had led into danger.
By September, that expectation had become urgent.
The Campaign Was Designed Around Movement Rather Than Occupation
Edward's army did not move like a slow invasion force intending to garrison every town.
It raided.
The speed created uncertainty for French defenders.
A fortified place could refuse to surrender.
The English might simply bypass it and burn the surrounding region.
French commanders then had to choose whether to remain inside walls or pursue.
This created pressure on King John.
A king who allowed enemy troops to destroy the countryside without response damaged his own authority.
Subjects expected protection.
Nobles expected leadership.
Edward understood that political pressure.
Every burning settlement challenged the king's reputation.
John eventually gathered enough strength to pursue aggressively.
The campaign then became a race.
Edward tried to move toward safety.
John tried to get between Edward and his route home.
The French king succeeded well enough that the English could no longer avoid the possibility of a major battle.
The Loire Had Already Refused Edward One Escape
Edward's force had moved northward and eastward through France, searching for opportunities and possibly hoping to connect with other English operations.
But rivers mattered enormously in medieval campaigning.
An army could not simply drive across any waterway.
Bridges were strategic objects.
Fords depended on conditions.
Defenders could destroy crossings.
A river that looks narrow on a modern map could become a wall to thousands of men, horses, carts, and equipment.
The Loire complicated Edward's movement.
Unable to cross where he hoped, he eventually turned back toward the southwest.
That decision placed his army on the path toward Poitiers.
King John moved to intercept.
The French army marched rapidly.
At one stage, the French managed to move around Edward's force and place themselves closer to the road south.
The raiders who had been trying to escape were now being blocked by the army they had wanted to avoid.
Edward's strategic freedom disappeared.
He needed another kind of advantage.
Terrain would provide it.
A Medieval Army Could Not Change Direction Like a Single Body
Thousands of men create friction.
Knights have horses.
Archers carry equipment.
Supply carts move slowly.
Animals require fodder.
Men require food.
Roads become crowded.
Dust reduces visibility.
Orders travel by messengers, flags, voices, and personal contact.
A modern viewer looking at a map can imagine an army simply turning south or east.
The actual movement might require hours.
One unit begins moving while another still waits.
A narrow bridge can delay everyone.
Rain changes roads.
A broken wagon can block a column.
Edward could not simply discover the French behind him and sprint toward Bordeaux.
His army existed physically inside a landscape.
The French did too.
The side that understood the landscape better could turn geography into strength.
Near Poitiers, Edward finally stopped treating the terrain as an obstacle to retreat and began treating it as a weapon.
Before the Battle, There Was Still a Chance No Battle Would Happen
The day before the main fighting, negotiations took place.
A papal representative, Cardinal Hélie de Talleyrand-Périgord, attempted to prevent the battle.
The papacy had reasons to encourage peace among Christian rulers.
Europe faced other political and military concerns.
A bloody battle between major Christian monarchies benefited neither Church diplomacy nor long-term stability.
The cardinal moved between the armies.
Terms were discussed.
Different chroniclers give varying accounts of exactly what Edward offered and what John demanded.
Some versions suggest Edward was prepared to return conquered places or prisoners and agree to a truce.
Other accounts emphasize that the French king demanded the surrender of Edward and important members of his army.
Whatever the exact details, no agreement emerged.
Both sides prepared to fight.
The failed negotiations later added drama to the story.
Edward seemed trapped enough to negotiate.
John seemed confident enough to reject anything short of a decisive advantage.
Then the battlefield reversed their positions.
This has encouraged later writers to portray John as simply arrogant.
That judgment is too easy.
The French king had good reasons to believe his army possessed the stronger position.
He had more troops.
He had blocked Edward's retreat.
He had the prince in hostile territory.
If John allowed Edward to escape after weeks of devastation, French prestige would suffer.
A commander can make a reasonable decision and still lose.
Poitiers was not produced by French stupidity alone.
The French Had Learned From Crécy
Crécy had occurred in 1346.
French cavalry charges against prepared English positions had suffered terribly.
English and Welsh longbowmen disrupted horses and formations.
Attacks came in poorly coordinated waves.
By 1356, French commanders were not unaware of the danger.
They adapted.
At Poitiers, major portions of the French army advanced on foot.
Men-at-arms dismounted.
This reduced vulnerability to horses being wounded beneath them.
A knight on foot could continue fighting after an arrow struck where a horse would otherwise have fallen.
Dismounted troops could also remain more compact in difficult ground.
At least in theory.
But every adaptation creates new costs.
Heavy armor is exhausting.
Men walking in mail, plate elements, helmets, and additional equipment burn energy quickly.
The battlefield near Poitiers contained obstacles.
Vines.
Hedges.
Uneven tracks.
Restricted approaches.
A mounted knight risks his horse.
A dismounted knight risks exhaustion before reaching the enemy.
The French had solved one problem and entered another.
The Longbow Was Not a Magical Armor-Piercing Weapon
Popular images sometimes show English arrows passing effortlessly through every French breastplate.
Reality was more complicated.
Armor quality varied.
Range mattered.
Impact angle mattered.
Different body areas had different protection.
Good armor could resist many arrow strikes.
But a weapon does not need to kill every armored man to shape a battle.
Arrows could strike horses.
They could hit faces.
Hands.
Legs.