In Macbeth, what difference exists between Macbeth's army and Malcolm's army?

Macbeth's army consists of soldiers who stand in "forced
affection," meaning they do not support Macbeth willingly or serve him out of respect or
loyalty. In Act V, Angus describes Macbeth's army:

readability="6">

Those he commands move only in
command,

Nothing in
love.

In contrast, Malcolm's
army is composed of men who fight passionately, united in their determination to destroy
Macbeth, the tyrant who has stolen the throne of Scotland and plunged the country into
misery. Furthermore, English soldiers have joined Malcolm in his fight, and citizens of
Scotland have risen to swell the ranks of his army, as well. Macbeth notes that
Malcolm's army is reinforced with "those that should be ours." The disloyalty of
Macbeth's army is pointed out by Malcolm during the
battle:

We have met with
foes

That strike beside
us.

Macbeth's army appears to
be fighting for Macbeth, but in battle they deliberately miss when striking Malcolm's
soldiers.