Melee Knockback trigger

I'm trying to make melee knockback so when a unit hits another the hit unit gets thrown back (in the direction attacker was facing) but I can't quite figure out how to get all the directional values from the attacker and use them to push the other one back, can anyone help?

move unit to position of unit [one being hit] offset by X towards angle between position of attacker and position of unit being hit

And that will move it in the direction the attacker is facing?

I got the same problem with my starwars map, when a jedi/sith uses the push ability the unit should be thrown back but I just don't have a clue about how it is done, I only know that I need som variable or something...

Create a polar offset and center it on attacking unit. Make attacked unit move offset of x and set degrees to attacking unit's facing angle.

i got it in some map as spell

i guess you just need to use attacker instead of caster and attacked unit instead of target.

Unit - Move TARGET instantly to ((Position of TARGET) offset by DISTANCE towards (180.00 + (Angle from (Position of TARGET) to (Position of CASTER))) degrees)