No, he didn't imply going "to war" in a literal sense like "come on. Johnny and Angie, let's get our battle clothes ready" Nothing like that!

Rather, he was begging Angie to hand the tapes over and "I can't stop the guy always bringing it up unless I tell the guy why don't u go fuk yourself. (Then he stutters/ hesitates) -and says then we know what we gotta do we go to war BUT is that what u really want, a lot of guys can get hurt. I could get hurt, he (Gotti) can get hurt"

So he's actually cautioning against war.