An army unit usually consisting of five companies

Pentomic refers to a structure for infantry and Airborne divisions adopted by the U.S. Army in 1957 in response to the perceived threat posed by tactical nuclear weapons use on the battlefield.

An EU Battlegroup is a military unit adhering to the Common Security and Defence Policy of the European Union.

In military history, the German term Kampfgruppe can refer to a combat formation of any kind, but most usually to that employed by the Wehrmacht of Nazi Germany and its allies during World War II and, to a lesser extent, of the German Empire in World War I. It also referred to bomber groups in Luftwaffe usage, which themselves consisted of three or four Staffeln, and usually existed within Kampfgeschwader bomber wings of three or four Kampfgruppen per wing.

Battle Group is a 1986 computer wargame designed by Gary Grigsby and published by Strategic Simulations.