Penny Walker

After 25 years of service in the U.S. Marines, Cliff Vellucci retired in 2007 and began his transition to civilian life.

"Going from 1,000 mph to a very slow pace, it just really wasn't enough. I needed something more," he said.

He had always had a knack for teaching, so he returned to college and completed his degree through Arizona State University's Mary Lou Fulton Teachers College. Today, he serves as an assistant principal in a Phoenix elementary school. 

"When I was a Marine, people would come up to me and ask me what I did for a living. And I would feel really proud of saying, 'I'm a Marine,'" he said. "Well, now when people come up to me and ask me that same question, I feel that same sense of pride about saying I'm a teacher."

Watch his story here.

Video of Transitioning to Civilian Life: Cliff Vellucci