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,
United States Army officer rank insignia no living officer holds either of these ranks today, the General of the Army title and five-star insignia designed in 1944 are still authorized for use in wartime. Congress may promote generals to this rank for successful wartime campaigns, or to give the officer parity in rank to foreign counterparts in joint coalitions, specifically with respect to field marshals. United States Army officer rank insignia United States Army Officer rank insignia in use today. Warrant Officers (WO) and Chief Warrant Officers (CW) in the US Military rank below officers but above officer candidates and enlisted servicemen. The first warrant officer