What is the origin of the idiom "be caught in the crossfire" and when to use it?

The idiom "be caught in the crossfire" originates from the literal concept of being inadvertently trapped in the midst of a gunfight or conflict, where bullets are exchanged between opposing sides. Figuratively, it symbolizes finding oneself in a situation where conflicting interests, opinions, or forces clash, and one becomes an unintended victim or participant in the dispute. The idiom is used to convey a sense of vulnerability and the potential for harm when one is caught between opposing or warring parties.