What significant event involved the first battlefield use of the telephone?

The Spanish-American War is recognized for its notable advancement in military communication, particularly with the first battlefield use of the telephone. During this conflict, which took place in 1898, the telephone was utilized to relay messages and coordinate troop movements, marking a key moment in the evolution of military communication technology.

The use of the telephone allowed for faster and more efficient communication compared to traditional methods such as telegraphy, significantly impacting battlefield strategies and command operations. This event illustrates how emerging technologies were beginning to change warfare dynamics, setting the stage for future conflicts where enhanced communication became increasingly crucial.