Définition et Signification de "battle of wills"

What is the origin of the idiom "battle of wills" and when to use it?

The idiom "battle of wills" originated from the concept of individuals or entities engaging in a struggle or conflict based on their strong and opposing desires, intentions, or determination. This expression is mainly used to convey the idea of a confrontation or disagreement where each side is unwavering and resolute in pursuing their own objectives, often resulting in a protracted and intense struggle.