Section (Sec)/Group
Section (Sec) - 1. a sub-unit of a platoon 2. a tactical infantry grouping of eight men (usually divided into two fireteams) 3. US a tactical armoured grouping of two tanks (NOTE: In the US Army, section-sized infantry groupings are known as squads).
Group — a flexible administrative and tactical unit composed of two or more battalions or squadrons. The term also applies to combat support and combat service support units.
Group — several ships and aircraft, usually a force subdivision, are assigned for a specific purpose.
Group — a long-standing functional organization formed to support a broad function within a joint force commander’s headquarters. Also called GP [U. S. Department of Defense, p. 204].
The term, group, used in the daily language, defines “to become plural” in the most general sense. We use the group term for two or more individuals who come together and interact with each other to accomplish a specific goal. The group concept is defined diversely in social psychology and sociology. According to those definitions, the conditions such as joint norms, shared goals, and feeling as a group is suggested so that the crowd becomes a group [Monique, H. M., & Michael, A. H., p. 422].
Richard Boweyer Dictionary of military terms, 2004.
U. S. Department of Defense. (2017). Department of Defense Dictionary of Military and Associated Terms, JP 1-02. NC: Lulu Press.
Monique, H. M., & Michael, A. H. (2015). Group Processes, Social Psychology. International Encyclopedia of the Social & Behavioral Sciences, 2nd edition, 422-427. Oxford: Elsevier.