A formation is a high-level military organization, such as a Brigade, Division, Corps, Army or Army group. Technically, formations and units are different entities (a unit being a homogeneous organisation, such as a battalion, instead of a collection of separate organisations), but the terms are often used interchangeably. Military science concerns itself with the study and of the diverse technical, psychological, and practical phenomena that encompass the events that make up warfare, especially armed combat. ... Brigade is a term from military science which refers to a group of several battalions (typically two to four), and directly attached supporting units (normally including at least an artillery battery and additional logistic support). ... A division is a large military unit or formation usually consisting of around ten to fifteen thousand soldiers. ... This article is about a military unit. ... A nations army is its military, or more specifically, all of its land forces. ... An army-group is a military organization (formation) consisting of several armies, and is supposed to be self-sufficient for indefinite periods. ... In military terminology, a battalion consists of two to six companies typically commanded by a lieutenant colonel. ...

Tactical formation is the arrangement or deployment of moving military ground forces (infantry, cavalry, or AFVs), aircraft, or ships. Examples of different tactical formations are arrowhead, square, single column, or line abreast. Examples of medieval or ancient formations include shield walls (skjaldborg in Old Norse), phalanxes (lines of battle in close order), and skirmishers. Infantry, thought to be of the Royal Irish Rifles, in the First World War Infantry are soldiers who fight primarily on foot, although modern infantry may be transported in any number of fashions. ... -1... An armoured fighting vehicle (AFV) is a military vehicle, equipped with protection against hostile attacks and often mounted weapons. ... An infantry square is a battle tactic of infantry when faced with cavalry. ... The formation of Shield walls is a military tactic common to many cultures. ... Old Norse or Danish tongue is the Germanic language once spoken by the inhabitants of the Nordic countries (for instance during the Viking Age). ... A Macedonian phalanx, as portrayed in the Rome: Total War computer game. ... Traditionally light infantry (or skirmishers) were soldiers whose job was to provide a skirmishing screen ahead of the main body of infantry, harassing and delaying the enemy advance. ...

See also

• Laager