Nice video with good explanations. The audible information had longer-than-necessary pauses; changing the playback speed to x1.25 in Settings made this more bearable for me. But still a worthwhile view nonetheless. Thanks for the informative video!
This goes for the US army structure: Four soldiers make up a team - a noncommissioned officer and three junior enlisted soldiers. A group consists of four or five field armies and between 400,000 and 1 million soldiers. They’re commanded by a general and are considered self-sufficient for indefinite periods. They’re usually responsible for planning and directing campaigns in particular geographic areas. www.defense.gov/Experience/Military-Units/Army/