The ITF's not the army by any stretch, but it's still an organized militia. As far as he's concerned, he's active military to this day.

"Hard habit to beat," he says with a shrug. "I grew up on army bases. It's the only world I really know." Or at least the only one he feels comfortable in. Serving with the Avengers had been an experience and a half, but he did for Steve's sake more than his own. "And Cap's Cap."