Steve Nash's Ex Scores Victory In Child Support War -- But The Real Battle Roars On ...

An Arizona judge has issued a ruling laying the groundwork for Alejandra Nash to get a significant increase in child support.

It's definitely a victory of sorts ... but as Alejandra has stated in the past, her main goal is to move the kids to Los Angeles, so the war ain't exactly over.

As we previously reported, Alejandra says she wants to be in L.A. so the kids can be closer to their father, who plays for the Lakers -- but Nash says she's full of crap.

Steve believes she wants to be in Cali because the Golden State has child support laws that are much more favorable to Alejandra (and would allow her to get more $$$ from Steve than she would get in AZ). Plus, Steve claims she's a materialistic social climber who wants to be in L.A. to be in the Hollywood scene.

And don't forget Steve slammed L.A as a crappy place to raise children.

Bottom line -- the AZ child support ruling may be a victory for Alejandra on one level, but until her mail is sent to an L.A. address, this thing is far from over.