Do AA defence values stack?

[Christolos]

Hi I have always assumed that AA defence strengths stack in a given hex against a particular air attack.
For example, a city/town AA defence strength stacking with an AA unit or a ground unit. The same would perhaps apply in the case of a fortification AA defense strength stacking with a unit's AA defense strength that is deployed in the fortification.

Is this what happens?

Also, do deployed units in resource hexes that are attacked by air units, also add their AA defense values to those of the resource?

Thanks to anyone who can shed some light on this.

Cheers,

C

[Sugar]

Is this what happens?

Also, do deployed units in resource hexes that are attacked by air units, also add their AA defense values to those of the resource?

Sure, additional to any terrain boni.

[Christolos]

Thanks Sugar, that is what I thought and what makes sense too.

Cheers,

C