Field officer rank category (OF-3 to OF-5) of the Russian Imperial Army and Navy until 1917. The British Army (in which these officers are called officers of field rank), and some others in the Commonwealth (including the Australian Army and New Zealand Army), also include the brigadier in this category: the equivalent in other armies is a general officer (the brigadier general). Today, a field officer in the United States (here called field grade) Army, Marine Corps, and Air Force is typically a major, lieutenant colonel, or a colonel: Field officer A field officer, field-grade officer, or senior officer is an army,
Captain general of the Army Captain general of the Army Captain General () has been the highest rank in the Spanish Army ("Ejército de Tierra") since the 18th century. A five-star rank with NATO code OF-10, it is equivalent to a field marshal of the armies of numerous countries, a general of the Army of the United States, a captain general of the Spanish Navy "(Armada Española)" or an Captain general of the Air Force in the Spanish Air Force "(Ejército del Aire)". A Captain General's insignia consists of two command sticks under five four-pointed stars below the Royal Crown. A personal rank of "captain