Senior colonel a general rank silver star). The naval equivalent for a senior colonel is the non-flag commodore or fleet captain, although it is sometimes referred to as a senior captain. Senior colonel Senior colonel is an army officer rank placed between a regular colonel and a major general. The rank typically exists in militaries that do not maintain a rank of brigadier general or brigadier. In Nazi Germany, a rank equivalent to senior colonel, "Oberführer", was used by both the SA and SS. In the branches of the "Allgemeine SS" (General SS) and "Waffen-SS" (Armed SS) the rank of "Oberführer" was
Field officer Field officer A field officer, field-grade officer, or senior officer is an army, Marine, or air force commissioned officer senior in rank to a company officer but junior to a general officer. In most armies this corresponds to the ranks of major, lieutenant colonel and colonel, or their equivalents. Some countries also include brigadier in the definition. Historically, a regiment or battalion's field officers made up its command element. In the Canadian Armed Forces, the equivalent of field officers are senior officers (); they include the army and air force ranks of Major, Lieutenant-Colonel, and Colonel, and the naval ranks