The term "Blue Devils" can refer to several different subjects, but it is most commonly associated with the Duke University athletic teams. The Blue Devils compete in the NCAA Division I Atlantic Coast Conference and are known for their strong basketball program, which has won multiple national championships. Additionally, "Blue Devils" can also refer to a historical term for a type of military unit or a nickname for certain groups, such as the French 1st Infantry Division during World War I. This usage highlights the unit's distinctive blue uniforms and their notable bravery in battle.