Which rank is represented by a single silver bar device with a thin red break in the center?

The rank represented by a single silver bar device with a thin red break in the center is Chief Warrant Officer 5. This insignia is distinctive because it visually differentiates the rank from the others in the Chief Warrant Officer series, particularly through the addition of the red break, which indicates the highest level within that category. The design is specifically crafted to reflect the advanced experience and leadership responsibilities that come with this rank. Understanding the visual cues of military insignia is crucial for recognizing rank and the hierarchy within the military structure.