Unit Stats?

[ceff7711]

I can't find any language that describes what exactly each unit stat does.
For example, melee attack and melee defense. What exactly seaprated these two? Is the stat for melee attack used when my unit charges the enemy? And is the stat for melee defense used when my unit is standing its ground and being charged?
Thanks

[eXistenZ]

Wel charge effect has it own stats. Troops with high charge bonus (like Ulans), you have to use like a battering ram: charge, pul back, charge, pull back...

But for melee attack and defense, it just say how good it is at hitting the enemy/defecting an attack.