Well I wouldn't just assume their completely good guys now. Sure Konoha and Sand have a treaty right now, but that's probably just in their best interests. Garaa has gone through alot of changes, but I bet he's still pretty crazy with the lack of sleep (just not as much of a homocidal maniac as before).

We can hope the newly refounded alliance will build a better friendship between the two countries than the last time.

I'm glad these fights are starting to resolve now.