No, Trump hasn't been a warmonger, but he did bring in warhawk Bolton and some affiliated neo-cons, while surrounding himself with generals who like to use their expensive toys. And he did rachet up tension with and pressure on Iran. So there are potential dots to be connected if he gets in big trouble.
Trump is all about distractions, distractions and rallying his base.
If House impeachment proceedings turn the public against him, he becomes as dangerous as a 230 pound cornered rat . . .
You tell me, what he might do then . . .