Senior officer

This article is about military officers. For intelligence operatives, see Agent handling.

A field 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.

Canada

In the Canadian Armed Forces, the equivalent of field officers are senior officers (Template:Lang-fr); they include the army and air force ranks of Major, Lieutenant-Colonel, and Colonel, and the naval ranks of Lieutenant-Commander, Commander, and Captain.

France

In the French Forces, field officers are known as Commandant, Lieutenant-colonel and Colonel (Capitaine de corvette, Capitaine de frégate and Capitaine de vaisseau in the naval forces).

Germany

In the German forces, officers from Major to Colonel in the Army and Luftwaffe, or from Lieutenant Commander to Captain in the Navy are known as Stabsoffiziere which is translated as Field Officers.

Russia

Field officer (Template:Lang-ru; derived from Template:Lang-de; translation en: Field officer), was the designation of a particular officers rank category (OF-3 to OF-5) of the Russian Imperial Army and Navy until 1917.

Dsignation	Nevsky 1st infantry regiment				25th ID	Ivanogorodsky 99th IR
Shoulder bord
rank		Polkovnik Полковник	Podpolkovnik Подполко́вник	Major Майо́р	Polklovnik	Polkovnik	Podpolkovnik
rank category	Field Officers (Штаб-офицеры; Shtabofitsery)

United Kingdom and some Commonwealth countries

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).

United States

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:

The [U.S.] commissioned officer corps is divided into 10 pay grades (O-1 through O-10). Officers in pay grades O-1 through O-3 are considered company grade officers. In the Army, Marine Corps, and Air Force, these pay grades correspond to the ranks of second lieutenant (O-1), first lieutenant (O-2), and captain (O-3), and in the Navy, ensign, lieutenant junior grade, and lieutenant. Officers in the next three pay grades (O-4 through O-6) are considered field grade officers. In the Army, Marine Corps, and Air Force, these pay grades correspond to the ranks of major (O-4), lieutenant colonel (O-5), and colonel (O-6), and in the Navy, lieutenant commander, commander, and captain. The highest four pay grades are reserved for general officers in the Army, Marine Corps, and Air Force, and flag officers in the Navy. The ranks associated with each pay grade are as follows: in the Army, Marine Corps, and Air Force, brigadier general (O-7), major general (O-8), lieutenant general (O-9), and general (O-10); in the Navy, rear admiral-lower half, rear admiral-upper half, vice admiral, and admiral.