For many service members, enlisting in the military means you hit the track for a few months, knock out some pull-ups on the bar, and then head down to the local recruiter’s office once you’re confident you can handle the physical stress of basic training. But for William Guinn Jr. from Abilene, Texas, the road was long and hard. Guinn Jr. had to get in better shape before he could even think about boot camp — and that’s exactly what he did.