In 1996, the National Institute of Standards and Technology defined electronic data interchange as the computer-to-computer interchange of strictly formatted messages that represent documents other than monetary instruments.
A battalion is a military unit with 300 to 1,200 soldiers that usually consists of two to seven companies and is commanded by either a lieutenant colonel or a colonel. Several battalions form a regiment or brigade. The nomenclature varies by nationality and by branch of arms, for instance, some armies organize their infantry into battalions, but call battalion-sized cavalry, reconnaissance, or tank units a squadron or a regiment instead.
A divisional unit typically consists of 10,000 to 20,000 soldiers. The United States Marine Corps has a further three active divisions. They consist of three infantry regiments, one artillery regiment, a tank battalion, and a Light Armored Vehicle battalion, in addition to supporting elements.