The Battle of Agincourt was fought on 25 October 1415 between the English army of King Henry V and a much larger French army during the Hundred Years’ War. The English victory became one of the most famous battlefield triumphs of medieval Europe and established Henry V as one of England’s most celebrated warrior kings.
Background
The Battle of Agincourt took place during the Hundred Years’ War, a prolonged series of conflicts between England and France that began in the fourteenth century.
The wars were driven by competing claims to the French throne, territorial disputes, economic interests, and struggles between the English and French aristocracies.
English kings controlled significant territories in France, particularly in Normandy and Aquitaine.
However, French rulers increasingly sought to recover these lands.
By the beginning of the fifteenth century, the conflict had become intertwined with a civil war within France between the rival factions of the Armagnacs and the Burgundians.
In 1413, Henry V became king of England.
Henry was determined to strengthen his position and revive English claims in France.
He also faced political pressures at home and believed that military success could reinforce his legitimacy.
In 1415, Henry invaded France with a large English army.
His immediate objective was the capture of territory in Normandy.
The English army landed in northern France in August and began the siege of Harfleur.
The siege lasted much longer than Henry expected.
The English suffered heavily from disease, particularly dysentery.
When Harfleur finally surrendered in late September, Henry’s army had been severely weakened.
Thousands of soldiers had died or become too sick to continue.
Instead of returning directly to England, Henry decided to march north toward Calais, which was an English possession.
The journey would take the English army through territory controlled by France.
Henry may have hoped to demonstrate English military strength and reinforce his claim to French territory.
The French were now assembling an army to intercept him.
The French king, Charles VI, was unable to command the army personally because of periods of severe mental illness.
French forces were therefore led by senior nobles, including Constable Charles d’Albret and Marshal Jean Boucicaut.
The French army gathered in large numbers.
The English army, weakened by disease, casualties, and exhaustion, was substantially smaller.
Ancient and medieval chroniclers often exaggerated the numbers involved.
Modern historians generally estimate that Henry had approximately 6,000–9,000 men, while the French army may have numbered somewhere between 12,000 and 20,000, although the exact figures remain uncertain.
The French commanders were confident.
They believed that their numerical superiority, heavily armored cavalry, and large number of noble knights would overwhelm the exhausted English army.
Henry’s army was trapped between the French force and the English-held territory around Calais.
The two armies met near the village of Agincourt in northern France.
The Battle
The English army took up a defensive position between two wooded areas.
The terrain was extremely important.
The battlefield was a relatively narrow strip of recently cultivated land bordered by woods.
Heavy rain had fallen before the battle.
The ground became muddy and difficult to cross.
Henry deployed his troops across the narrowest section of the battlefield.
His men-at-arms formed the center of the army.
Large numbers of English and Welsh longbowmen were positioned on the flanks.
The longbowmen carried powerful bows capable of firing arrows rapidly over considerable distances.
They also carried stakes that could be driven into the ground to help protect them from cavalry attacks.
Henry’s army was exhausted and hungry.
Many soldiers had been weakened by disease.
The king nevertheless understood that the terrain could compensate for his numerical disadvantage.
The narrow battlefield prevented the French from using their entire army simultaneously.
The French army, by contrast, was crowded into a relatively confined area.
The French commanders initially considered waiting.
They could potentially allow the English army to weaken further through hunger and disease.
However, the French nobles were eager to attack.
The battle therefore began with French forces advancing toward the English position.
English archers opened fire.
Thousands of arrows fell upon the advancing French troops.
The French cavalry attempted to attack the English archers.
However, the muddy terrain, defensive stakes, and concentrated arrow fire disrupted the cavalry attacks.
Some French horses were killed or wounded.
Others panicked.
The cavalry attacks failed to destroy the English archers.
The main French assault then began.
French men-at-arms advanced toward the English line.
They were heavily armored and highly experienced, but their movement was severely restricted by the muddy ground and the dense formation of troops around them.
As the French advanced, English archers continued firing.
The narrow battlefield forced the French formations closer together.
The leading French troops encountered the English defensive line.
Intense hand-to-hand fighting followed.
The English men-at-arms held their position while the longbowmen continued attacking from the sides.
The French army’s numerical superiority became increasingly difficult to use.
Instead of surrounding the English army, the French formations became compressed.
As more French troops moved forward, the battlefield became crowded with soldiers unable to maneuver freely.
French knights who fell in the mud sometimes struggled to stand because of their heavy armor and the pressure of other troops behind them.
The English continued to attack.
Some longbowmen abandoned their bows and joined the close combat with swords, axes, and other weapons.
The fighting became extremely violent.
Several waves of French attacks followed.
Each was unable to break the English formation.
The French army suffered increasing casualties.
At some point during the battle, a French force attacked the English baggage train.
This may have caused Henry to fear that the French were preparing another attack from the rear.
He ordered some prisoners to be killed.
The exact circumstances remain debated, and medieval accounts differ about the scale and timing of the killings.
Nevertheless, a large number of French prisoners were killed during the battle.
The fighting eventually collapsed into a decisive English victory.
The French army withdrew from the battlefield.
Among the French dead were many members of the country’s political and military elite.
Several important nobles were killed or captured.
The English had won despite being heavily outnumbered and physically exhausted.
Henry’s victory was remarkable not because the English army was simply superior in every respect, but because its commanders exploited the battlefield to neutralize the advantages of the larger French force.
Aftermath
The Battle of Agincourt was a major political and military victory for England.
Henry V had survived a campaign that appeared to be on the verge of disaster.
His army had been weakened by disease, hunger, and exhaustion, yet it had defeated a much larger French force.
The English returned to England with an enormous number of prisoners and considerable prestige.
Henry became celebrated throughout Europe as a successful warrior king.
However, Agincourt did not immediately end the Hundred Years’ War.
France remained a powerful kingdom with substantial resources.
Henry therefore returned to France several years later with another army.
His campaigns produced further English victories.
Eventually, French political divisions weakened resistance to English expansion.
In 1420, the Treaty of Troyes was signed.
Under its terms, Henry V married Catherine of Valois, daughter of Charles VI.
Henry was recognized as heir to the French throne and was expected to become ruler of France after Charles’s death.
However, Henry died unexpectedly in 1422, only a few months before Charles VI.
Henry’s infant son, Henry VI, inherited both the English and French claims.
The political situation soon changed.
French resistance strengthened, particularly after the emergence of Joan of Arc.
The English gradually lost most of their territories in France.
By the middle of the fifteenth century, England had lost nearly all of its continental possessions except Calais.
The Hundred Years’ War finally ended in 1453.
Agincourt therefore represented a spectacular English victory, but it was not by itself decisive enough to secure permanent English control over France.
Historical Significance
The Battle of Agincourt became one of the most famous military victories in English history.
Its reputation was strengthened by the enormous disparity between the two armies.
The English were exhausted and heavily outnumbered, while the French possessed large numbers of heavily armored nobles and experienced soldiers.
Yet the battlefield favored the English.
The narrow terrain prevented the French from deploying their numerical superiority effectively.
The muddy ground slowed their advance.
The longbowmen disrupted cavalry attacks and inflicted casualties before the French could reach the English defensive line.
The English defensive position then allowed their infantry to withstand repeated attacks.
Agincourt is therefore an important example of how terrain and tactical organization can compensate for numerical inferiority.
The battle also demonstrated the changing nature of medieval warfare.
The heavily armored knight remained a formidable soldier, but massed infantry and missile troops could defeat cavalry under the right circumstances.
The English longbow played an important role in this transformation.
However, the longbow should not be treated as a magical weapon that automatically defeated armored knights.
Its effectiveness at Agincourt depended on several factors working together: the narrow battlefield, muddy ground, defensive stakes, disciplined formations, and the inability of the French army to maneuver properly.
The battle also became a powerful part of English national mythology.
William Shakespeare later immortalized Henry’s role in his play Henry V, particularly through the famous St. Crispin’s Day speech.
The speech is fictional, but it helped establish the popular image of Henry as a charismatic warrior king leading a small band of Englishmen against overwhelming French forces.
The real battle was more complicated.
The English victory involved disciplined military organization, favorable terrain, French tactical errors, and the exhaustion and illness already affecting Henry’s army.
Nevertheless, Agincourt remains an extraordinary military achievement.
The English army had marched across hostile territory, survived disease and hunger, and faced an enemy substantially larger than itself.
On a muddy field in northern France, Henry V’s forces defeated the French army and transformed Henry into one of the most famous kings of medieval Europe.
The Battle of Agincourt therefore remains a classic example of how terrain, discipline, ranged weapons, leadership, and tactical mistakes can determine the outcome of a battle despite a major numerical disadvantage.
Sources
Primary Sources
The Gesta Henrici Quinti
(
Deeds of Henry V
), an early fifteenth-century English account.
Jean de Wavrin.
Recueil des Croniques et Anchiennes Istories de la Grant Bretaigne
.
Enguerrand de Monstrelet.
Chroniques
.
Jean Froissart.
Chronicles
.
Shakespeare, William.
Henry V
.
Modern Scholarship
Barker, Juliet.
Agincourt: Henry V and the Battle That Made England
. Little, Brown, 2005.
Curry, Anne.
Agincourt: A New History of the Battle and Its Context
. Tempus, 2005.
Keegan, John.
The Face of Battle
. Penguin Books, 1976.
Ayton, Andrew, and Philip Preston, eds.
The Battle of Agincourt, 1415: Proceedings of the 2005 Harlaxton Symposium
. Boydell Press, 2007.
Rogers, Clifford J. “The Battle of Agincourt.” In
The Oxford Encyclopedia of Medieval Warfare and Military Technology
. Oxford University Press.