legend|#b9b9b9|No informationAn army (from
Latin"Armata" "act of arming" via Old French"armée"), in the broadest sense, is the land-based armed forcesof a nation. It may also include other branches of the militarysuch as an air force. Within a national military force, the word Army may also mean a field army, which is an operational formation, usually made up of one or more corps.
In several countries the army is officially called the land army to differentiate it from an
air forcecalled the air army, notably France. In such countries, the word "army" on its own retains its connotation of a land force in common usage. The current largest army in the world by number of active troops is the People's Liberation Armyof China with 2,250,000 active troops and 800,000 reserve personnel.
field armyis composed of a headquarters, army troops, a variable number of corps, and a variable number of divisions. A battle is influenced at the Field Army level by transferring divisions and reinforcements from one corps to another to increase the pressure on the enemy at a critical point. Field armies are controlled by a General or Lieutenant General.
A particular army can be named or numbered to distinguish it from military land forces in general. For example, the
First United States Armyand the Army of Northern Virginia. In the British Armyit is normal to spell out the ordinal number of an army (e.g. First Army), whereas lower formations use figures (e.g. 1st Division).
Armies (as well as
army groups and theaters) are large formations which vary significantly between armed forces in size, composition, and scope of responsibility.
In the Soviet
Red Armyand the Soviet Air Force, "Armies" were actually corps-sized formations, subordinate to an Army Group-sized "front" in wartime. In peacetime, a Soviet army was usually subordinate to a military district.
List of armies
List of armies by country
List of armies by number
List of countries by size of armed forces
List of countries by number of active troops
List of countries by number of total troops
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