His customers include the Defense Department and various spy agencies. He has about 200 people on the payroll, most of whom go to work every day in places where they could very well get shot or blown up--Iraq, Afghanistan, Ghana, Djibouti, Somalia, and Libya, to name a few. They guard buildings, protect VIPs, train foreign soldiers, and do a lot of office work, too: "Our specialty," says Patriot Group COO Rob Whitfield, "is providing sometimes common services in real crappy places." ... As a veteran, Craddock knows about war--what it is to confront bad guys face-to-face, to lose a friend in combat, to endure long separations from family, and then to wonder, once you're out, whether you'll ever again do anything as focused, as intense, as in-your-face important as what you did in uniform. As an entrepreneur, he also knows about business--what it is to risk everything on a proposal that goes nowhere, to be cut off by your banker, to drain your 401(k)--and ultimately what it feels like to succeed in a notoriously corrupt industry that's closely regulated, intensely scrutinized, rife with unsavory characters ("Some of the folks who work for us--I wouldn't want to be on their bad side, consistently"), and beholden like no other to the fickle winds of geopolitics. ... Total Defense Department spending on contractors--including those supplying weapons and R&D as well as services--peaked at $412 billion annually, and is down more than 30 percent since 2009. Among the factors: troop drawdowns, shrinking budgets, and a deteriorating business climate marked by intense congressional scrutiny, stricter oversight in the field, and heightened public distrust. ... Ironically, as spending drops, the relative importance of the private sector grows. Contractors deliver continuing access to talented people the military can't otherwise retain and instant access to short-term skills.