How i Disable the Attacking on Allies?

[zuman]

Can anyone tell me or give me an example how to make a Trigger witch will Disable Attacking Allies?!

[legendair]

In gui or jass ?

for the Gui :

Events: A unit is attacked
Conditions: (Attacking unit) is an ally of (Attacked unit) equal to True
Actions: Order (Attacking unit) to Stop

[zuman]

In gui or jass ?

for the Gui :

Events: A unit is attacked
Conditions: (Attacking unit) is an ally of (Attacked unit) equal to True
Actions: Order (Attacking unit) to Stop

Wait how i make that Conditions i cant make it could you make a map for me and put that stuff in it? pLEASE!

EDIT:
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Nvm i got it ^^