Little red or green balls at the base of a unit?

[MarkShot]

What do the little red or green balls at the base of a stack/unit on the game map signify?

Thanks.

[Donan]

What do the little red or green balls at the base of a stack/unit on the game map signify?

Thanks.

Number of troops in a Unit (so more green, larger the force). Not sure on the
'red' ones. They mention 'orange' ones pertaining to the type of order that has been given to the Unit.

[PhilThib]

This indicates the "size" of the army: the more balls, the more units in it

And the color is an indication of the average army state: if green, most units are in good condition. If orange, some are damaged...and if red...well...you'd better hide your force for a good rest