The Battle of Poitiers aka the Battle of Tours took place over roughly a week in early October of 732. The opposing sides consisted of a Frankish army led by Charles Martel (r. 718-741) against an invading Muslim army under the nominal sovereignty of the Umayyad Caliphate (c. 661-750) based in Damascus, Syria.
This is a companion discussion topic for the original content at https://www.worldhistory.org/article/1809/the-legacy-of-charles-martel--the-battle-of-tours/.