What does Command stars and other skills actually do?

[Valhal]

Hey

I have searched the Internet and looked in many faqs to find the answer of what the generel skills actually do - in terms of game mechanics. But havent really gotten a clear and straight answear

I know that Commandstars improve the units under a generels command.

But what does it acutally do? Is it + 1 morale for every unit or what for each star or something else?

And If some one could do a scale of what 1, 2, 3, 4 etc command star does it would be great.

Same question for management and influence?

Cheers