I am missing the information on how many troops you loose with an attack. Yes, I see how many are required to capture the territory but don't know how much enemy is loosing

Try downloading http://danwlgames.000webhostapp.com/WL_WZ/WL_calculate_attack.zip or doing the math yourself. Hope this helps.

Edit: updated download link.

Edited 11/23/2017 00:15:38