Division

Division can be a department of a big corporate.

In army military term it's one of the bigger fighting units, involving tonnes of logistic.
Most war are fought on the basis of division fighting unit.

CN is so big that that the division is often count in more than two digits.
According to some standard world war 2 Europe allied force, general Patton command an army corp of probably three division, and a new armour tank division. In addition a special air borne 101 division. Actually a big force of British and Russian force are involve in ww2 Europe. But not totally documented and presented as the USA you tube.

Guess this is the limit of discusion. Can be consider as technical military history. Quite neutral if read for some tactical and strategic move point of view.

Beyond that. .........