Setting up personal boundaries with another person, particularly when you've been disrespected up to that point. Combat boots are needed to kick some ass. These combat boots are often worn by women to put another woman in her place.
His ex-girlfriend keeps showing up when we go out and trying to get his attention, next time we go out I'm wearing my combat boots.
He's bringing that bimbo to our kids parent-teacher conference. She has no business there. I'm coming too and I'll be wearing combat boots.