Senior colonel 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 widely used. The rank did not exist in the army ("Heer"), although the "Kriegsmarine" (navy) maintained the equivalent rank of "Kommodore". After World War II, armies in Asia, especially
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