* Battle of Crécy (1346): This battle marked the first major English victory of the war. The English, under the command of King Edward III, defeated a much larger French army led by King Philip VI. The English used a combination of longbow archers and dismounted knights to great effect, inflicting heavy casualties on the French.
* Battle of Poitiers (1356): Another major English victory, the Battle of Poitiers saw the capture of King John II of France by the English. The French army was again defeated by a smaller English force, and the capture of the French king was a major turning point in the war.
* Jacquerie Rebellion (1358): A peasant revolt in France, the Jacquerie Rebellion was sparked by the harsh conditions and taxation imposed by the French nobility. The rebellion was eventually suppressed, but it further weakened the French monarchy and contributed to the disruption caused by the war.
* Treaty of Brétigny (1360): This treaty ended the first phase of the Hundred Years' War. The treaty granted England control over a large part of France, including Calais and Aquitaine. However, the treaty did not resolve the underlying causes of the war, and it was later repudiated by the French.
* Battle of Agincourt (1415): Another major English victory, the Battle of Agincourt saw the defeat of a much larger French army by a smaller English force. The English, led by King Henry V, used a similar strategy to that employed at Crécy, with longbow archers playing a crucial role in the victory.
* Treaty of Troyes (1420): This treaty was signed between England and France, and it declared Henry V of England as the heir to the French throne. The treaty also disinherited the Dauphin Charles, the rightful heir to the French throne. However, the treaty was unpopular in France and it was later repudiated by the French.
* Battle of Patay (1429): This battle marked a turning point in the war in favor of the French. The French, led by Joan of Arc, defeated an English army and captured the city of Orléans. The victory boosted French morale and led to a series of French victories that ultimately resulted in the expulsion of the English from France.
These are just a few of the major battles and turning points of the Hundred Years' War. The war was a complex and protracted conflict that had a profound impact on both England and France.