from 2 teams to 1 team

[Nightmare_NOR]

i have teams, that i wont to make them become allys
i try to do this trigger (make red treat blue as ally)..ect
but :? nothing he stell attack him...... HELP!

thx to everyone who can help me..

 

[Nightmare_NOR]

OPS!
i did something wrong thats why it dident work... sorry about that