What rank does 'CDR' stand for?

The designation 'CDR' stands for Commander, which is a rank in the U.S. Navy and other uniformed services, corresponding to O-5 on the officer rank scale. A Commander typically holds significant responsibilities within their command, leading personnel and managing operations, making it an essential leadership role in the military structure.

The rank of Commander is one level above the rank of Lieutenant Commander (O-4) and one level below the rank of Captain (O-6). Understanding these rank definitions is crucial for appreciating the structure and hierarchy within military organizations, as each rank signifies different levels of authority and responsibility.