Which rank is indicated by the shoulder device with two half inch gold stripes?

The shoulder device with two half-inch gold stripes indicates the rank of an O-3, which is typically known as a Captain in the Army, Marine Corps, or Air Force. In military rank insignia, each stripe generally corresponds to a specific level of authority and responsibility. In this context, the two half-inch stripes signify that the individual has reached a level of experience and leadership capability associated with the O-3 rank. This rank is above O-2 (First Lieutenant) and below O-4 (Major), marking a significant advancement in leadership roles and responsibilities within the military hierarchy. The clear differentiation in insignia allows for a quick visual assessment of rank and facilitates command structure awareness.