Hi, I am looking for a LUA event that can be triggered before an enemy decides to attack my unit. If my unit is on a river tile I need to change his strength and give him a defense bonus. With some help here on the forum I figured out how to give the attack bonus. I used the LUA event SerialEventMouseOverHex. When there is a unit on that plot and I am at war with them, then I can adjust the strength. So it will be like: * Trigger: Enemy Unit wants to attack * Check if my unit is on a river * If so change combat strength But I also want to give my unit a defense bonus when it is attacked and my unit is on a river tile. I just don't know which LUA even I will have to use. I tried different onces but haven't found the right one yet. Thanx in advance! Greetings, Martijn edit: just after posting I realised how I could do it: * after turn end loop over all units * check if unit is the type that receives bonus * check if unit is on à river plot * give bonus Then reset at turn start. But would that work if the computer plays the civ that would get the bonus?