UAV's and significance of the same.

I thought since everone and his pet terrior is talking about them, it was time to have a sit down and pow wow about how use full UAV’s really can be. I am not talking about UCAVS at the moment since they have not come into being as of yet.

How have they effected battles?

when a UAV is downed does it sap the moral of the troops?

Inversly do they provide a filip for the troops who downed the UAV?

How can the use of UAV’s be changed to better effect the out come of war?

Please go ahead, ill dig up some stuff and post too, just trying to start a fresh topic, not sure if UAV’s have been discussed yet.