Which city is one of the first to have recruiting stations opened?

The city identified as one of the first to have recruiting stations opened is Philadelphia. This is significant because Philadelphia holds historical importance in the context of military recruitment in the United States. Recruitment efforts began in major urban centers like Philadelphia during pivotal moments in American history, especially as the nation expanded and required larger military forces.

During the early days of the United States military, Philadelphia was a central hub due to its status as one of the key cities in the nation. It played a crucial role in the establishment of military protocols and infrastructure, which included the opening of recruitment stations to enlist soldiers during various conflicts. This historical context underscores why Philadelphia's recognition as an early site for recruiting activities is historically accurate.

Other cities such as Chicago, Miami, and Phoenix may have later developed significant recruitment infrastructures, but they do not share the same early historical precedence as Philadelphia in relation to military recruiting efforts.