Defense Modifier Tiles / Watch Tower

Hello,

 

I have a question. In a Forest tiles for example, coef for defender is 1,3. If we build a watchtower over there, there is a new information, WT modifier 1,2. Then which one is taking in count ?

The stronger one ? Or we add both ?

 

Thanks 

You multiply them together.  So the attack value is (troops+kings)*1.2*1.3

Oh ok good it ! So better to build tower in high coef def tiles like forest ! Thanks