What is the rank insignia of a Navy or Marine Corps O-7?

The rank insignia of a Navy or Marine Corps O-7 is represented by one silver star. This star indicates the rank of a Rear Admiral in the Navy or a Brigadier General in the Marine Corps. The use of a silver star is a traditional insignia that conveys a significant level of leadership and responsibility within the military hierarchy.

In contrast, one gold star is not associated with any officer ranks but is instead often used to indicate certain achievements or honors outside of the rank structure. Two silver stars correspond to the rank of Rear Admiral (Upper Half) or Major General, and three silver stars denote the rank of Vice Admiral or Lieutenant General, which are higher than O-7.

Understanding these insignias helps to navigate military rank structures and recognize the authority associated with various officers within the Navy and Marine Corps.