What rank is equivalent to O-6 in terms of command?

The rank equivalent to O-6 in terms of command is typically Colonel in the Army, Air Force, and Marine Corps, and Captain in the Navy and Coast Guard. At O-6, individuals are usually in charge of significant organizational units, such as a brigade or a battalion in the Army, or a ship or a squadron in the Navy. This position carries substantial command responsibilities and authority, overseeing personnel, operations, and resources.

The title 'Colonel' aligns directly with the O-6 designation in the context of the Army, Air Force, and Marine Corps, while 'Captain' aligns with the Navy's organizational structure. The critical point is that O-6 represents a senior level of command across military branches, typically involving interaction with higher-level command and significant decision-making authority.

Other ranks mentioned, such as Rear Admiral (Lower Half) and Vice Admiral, are higher than O-6, while Commander/Lieutenant Colonel represents lower ranks, thus differentiating them from the O-6 equivalency.