Final answer:
The location of the 'first war' is unclear, but it may refer to the first engagements of significant wars like the Revolutionary War at Lexington and Concord or World War I, known as the first global war.
Step-by-step explanation:
The question revolves around identifying the location of the first war. While there are many early conflicts that could be considered, the information provided relates to several significant historical wars involving the United States. As such, it could pertain to any number of conflicts, given the broad nature of the question. However, based on the referenced material, it may be referring to the first engagements of notable wars such as the Revolutionary War, or possibly even the first global conflict, World War I.
The first engagement of the Revolutionary War was at Lexington and Concord. These battles took place before the colonists had an official army, initiating the conflict that eventually led to American independence. The site of the initial exchange of gunfire was Lexington, where the war began almost accidentally with a shot fired by an unknown individual.
World War I, also referred to as the first global war, was fought on multiple fronts and involved nations from nearly every continent, changing the face of modern warfare with its industrialized weaponry. While the exact location of the 'first war' is still nebulous, these were among the formative conflicts of the modern era.