Answer: France
Some extra relevant information:
The Battle of Agincourt, a defining moment in English history, took place on October 25, 1415 during the Hundred Years’ War. In this historic battle, England faced off against France. The English army, led by King Henry V, encountered the larger French forces in Northern France, near the village of Agincourt. Despite being heavily outnumbered, the English emerged victorious in this fierce clash. The Battle of Agincourt stands as a testament to the strategic brilliance and resilience of the English army, achieving a significant milestone in the long-standing conflict between England and France.