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,
Colonel general rank – only six officers have held this rank till now – Hafez al-Assad, Mustafa Tlass, Hikmat al-Shihabi, Ali Habib Mahmud, Dawoud Rajiha and Fahd Jassem al-Freij. The title of colonel general was used before and during the English Civil War in both Royalist and Parliamentarian armies. In these cases, it often appears to have meant a senior colonel as opposed to a senior general. In the United States, as commander of an army, the equivalent rank was general (four-star general, grade O-10). In Vietnam, the rank of colonel general is known as "thượng tướng" (literally "upper general"), equivalent to