An association of several Army Corps under a unified command. Army Corps The basic strategic unit in the age of Napoleon (also known as a column for the Allies). Army Corps are often composed of the 3 arms (Infantry, Cavalry and Artillery), however some may be specialized (Reserve Cavalry Corps, Artillery Reserve). Artillery HistWar doesn't deal with siege artillery. With regards to campaign artillery units, the name depends on the weight of the shot (12, 8, 7, 6, 4 or 3 pounds). There are also howitzers which fire shells fitted with a fuse in which the explosion should occur in the air, assuming that the fuse is properly adjusted. In addition to round shot and shells (howitzers only) guns also fired canister (grapeshot) which was very effective and deadly at short ranges. Attrition Natural strength reduction due to fatigue. Battalion The basic tactical infantry unit, led by a battalion commander (Major). Comprised of a varying number of companies depending on year and country. Usually it would comprise of anything between 500 and 800 men. Brigade 2 or more Regiments under the command of a Brigade General. Can sometimes be composed of individual Battalions.
For the USA, an army is any command or subcommand led by an Army Commander (or an Army-Group Commander acting as a subordinate). For the CSA, an army is any command led by an Army Commander. For purposes of showing a leader's capacity, armies are represented by the symbol xxxx.
The Yeoman Army consists of the professional soldiers of the Yeomanry. Members of the Yeoman Militia who have gained citizenship may elect to continue their military service via the Army. Similar to Militia service, Army members select whether they wish to belong to the infantry, archery, or cavalry corps. Unlike the Militia, Army members are paid for their service, and the job is often full-time. The Army supplies good training and many Army soldiers are quite veteran.
The largest organizational group of soldiers, made up of one or more corps. There were 16 Union armies (named after rivers, such as the Army of the Potomac) and 23 Confederate armies (named after states or regions, such as the Army of Northern Virginia). 1 company = 50 to 100 men, 10 companies = 1 regiment, about 4 regiments = 1 brigade, 2 to 5 brigades = 1 division, 2 or more divisions = 1 corps, 1 or more corps = 1 army.
The term Army, besides its generalized meaning (see "army") specifically denotes a major military formation in militaries of various countries, including the Soviet Union. During World War II ordinary Soviet armies initially consisted of a number of Rifle Corps. In the emergency of 1941 it was found that inexperienced commanders were finding difficulty in controlling armies with subordinate corps, and they were abolished, to be recreated later in the war.